Engine Controls - Removal & Installation: Removal & Installation Mazda MX-5 NB рестайлинг

Removal & Installation (B2300)

1. Disconnect the negative battery cable.
2. Remove the accelerator control splash shield. (Scheme 1)
3. Disconnect Mass Airflow (MAF) harness connector. (Scheme 2)
4. Disconnect the electrical harness push pins and the crankcase ventilation tube. (Scheme 3)
5. Loosen the hose clamps, remove the bolt and remove the air cleaner outlet pipe. (Scheme 71)
6. To install, reverse the removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 1

Scheme 2

Scheme 3

Removal & Installation (B3000)

1. Remove the crankcase ventilation tube. (Scheme 4)
2. Loosen the clamps and remove the air cleaner outlet tube. (Scheme 5)
3. To install, reverse removal procedure.

Scheme 4

Scheme 5

Removal & Installation (B4000)

1. Disconnect the battery ground cable.
2. Remove the accelerator control splash shield. (Scheme 6)
3. Disconnect the Mass Air Flow (MAF) harness connector. (Scheme 2)
4. Disconnect the electrical harness push-pins and the crankcase ventilation tube. (Scheme 7)
5. Loosen the hose clamps and remove the air cleaner outlet pipe. (Scheme 8)
6. To install, reverse removal procedure.

Scheme 6

Scheme 7

Scheme 8

Removal & Installation (Tribute 2.0L)

Note. Numbers in parenthesis refer to number in illustration.

1. Unclip the throttle cable from the air cleaner outlet pipe. (Scheme 9)
2. Loosen the screw clamp and disconnect the pipe. (Scheme 9)
3. Disconnect the outlet pipe from the throttle body (1). (Scheme 10)
4. Unclip the hose from the outlet pipe (2). (Scheme 10)
5. Disconnect the crankcase vent tube and remove the air cleaner outlet pipe (3). (Scheme 10)
6. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). NOTE: The air cleaner outlet pipe should be securely sealed to prevent unmetered air from entering the engine.

Scheme 9

Scheme 10

Removal & Installation (Tribute 3.0L)

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Disconnect the crankcase vent hose (1). (Scheme 11)
2. Loosen the screw clamps (2). (Scheme 11)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 11

1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove in the order indicated in the illustration. (Scheme 12)
4. To install, reverse removal procedure. (Scheme 12)

Scheme 12

Removal & Installation (Mazda6 2.3L)

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the illustration. (Scheme 13)
3. To install reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 13

Removal & Installation (Mazda6 3.0L)

1. Disconnect the negative battery cable.
2. Drain the engine coolant. See appropriate COOLING SYSTEM - MECHANICAL article in ENGINES.
3. Remove in the order indicated in the illustration. (Scheme 14)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). For intake manifold bolt tightening sequence (Scheme 15) For dynamic chamber bolt tightening sequence (Scheme 16)

Scheme 14

Scheme 15

Scheme 16

Removal & Installation (Miata)

1. Disconnect the negative battery cable.
2. Drain the engine coolant from radiator. See appropriate COOLING SYSTEM - MECHANICAL article in ENGINES.
3. Remove in the order indicated in the illustration. (Scheme 17)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). Install the intake manifold gasket with convex side of the gasket facing the intake manifold side. (Scheme 18) Install the dynamic chamber gasket with the convex side of the gasket facing the intake manifold side. (Scheme 19) Tighten the dynamic chamber bracket bolts firmly, then tighten the dynamic chamber side bolt before tightening the fuel distributor side bolt.

Scheme 17

Scheme 18

Scheme 19

Removal & Installation (MPV)

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the illustration. (Scheme 20) Remove the fuse box, battery, and battery tray before removing the fresh-air duct. Remove the front mudguard (LH) before removing the resonance chamber. Disconnect the fuel injector connector and fuel hoses before removing the fuel distributor. See «FUEL RAILS & INJECTORS»(ref-151901-S40619429102003010900000) under FUEL SYSTEMS.
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). Tighten the intake manifold bolts in the order indicated in the illustration. (Scheme 15) Tighten the dynamic chamber bolts in the order indicated in the illustration. (Scheme 21)

Scheme 20

Scheme 21

Removal & Installation (Protege & Protege5)

1. Disconnect the battery negative cable.
2. Remove in the order indicated in the illustration. (Scheme 22) Drain the engine coolant from the radiator before removing the throttle body. Remove the fuel injector before removing the intake manifold. See «FUEL RAILS & INJECTORS»(ref-151901-S40619429102003010900000) under FUEL SYSTEM.
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). To install the dynamic chamber gasket, make sure that the convex side of the gasket is facing the intake manifold side. (Scheme 23) To install the intake manifold gasket, make sure that the convex side of the gasket is facing the intake manifold side. (Scheme 24)

Scheme 22

Scheme 23

Scheme 24

Removal (B2300)

1. Remove the accelerator control splash shield. (Scheme 1)
2. Remove the air cleaner outlet tube. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).
3. Disconnect accelerator cable and cruise control cable (if equipped) from the throttle linkage (1). (Scheme 25)
4. Disconnect accelerator cable and cruise control cable (if equipped) from the mounting bracket (2). (Scheme 25)
5. Disconnect the Throttle Position (TP) sensor. (Scheme 73)
6. Disconnect the Manifold Absolute Pressure (MAP) sensor harness connector. (Scheme 26)
7. Disconnect the vacuum hose and the Idle Air Control (IAC) valve harness connector. (Scheme 27)
8. Disconnect the engine vacuum harness, brake booster hose and the crankcase breather hose. (Scheme 28)
9. Disconnect the engine wiring harness and position it out of the way. (Scheme 29)
10. Remove the electric EGR tube bracket bolt. (Scheme 30)
11. Disconnect the swirl control valve harness connector. (Scheme 31)
12. Disconnect the swirl control valve monitor harness connector. (Scheme 32)
13. Disconnect the fuel line from the clip. (Scheme 33)
14. Remove the bolts from the EGR tube flange. (Scheme 34)
15. Detach the 42-pin harness connector from the bracket and disconnect the intake vacuum hose. (Scheme 35)
16. Disconnect the engine Knock Sensor (KS) harness connector and disconnect the connector from the intake manifold. (Scheme 36)
17. Remove the wiring harness push-pin from the bottom of the intake manifold.
18. Disconnect the fuel manifold vacuum hose. (Scheme 37)
19. Remove the 5 bolts and the intake manifold. (Scheme 38)

Scheme 25

Scheme 26

Scheme 27

Scheme 28

Scheme 29

Scheme 30

Scheme 31

Scheme 32

Scheme 33

Scheme 34

Scheme 35

Scheme 36

Scheme 37

Scheme 38

Installation (B2300)

1. Inspect and install new intake manifold gaskets, if necessary. (Scheme 39)
2. Install the intake manifold and the 5 mounting bolts. (Scheme 38) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
3. Connect the fuel manifold vacuum hose. (Scheme 37)
4. Connect the wiring push-pin to the bottom of the intake manifold.
5. Connect the engine knock sensor harness connector to the intake manifold and connect the harness connector. (Scheme 36)
6. Attach the 42-pin harness connector to the bracket and connect the intake vacuum hose. (Scheme 35)
7. Install the EGR flange mounting bolts. (Scheme 34)
8. Connect the fuel line into the clip. (Scheme 33)
9. Connect the swirl control valve harness connector. (Scheme 31)
10. Connect the swirl control valve monitor harness connector. (Scheme 32)
11. Install the EGR tube bracket bolt. (Scheme 30)
12. Position engine wiring harness and connect the push-pin. (Scheme 29)
13. Connect the engine vacuum harness, brake booster hose and crankcase breather hose. (Scheme 28)
14. Connect the vacuum hose and the IAC valve harness connector. (Scheme 27)
15. Connect the MAP sensor harness connector. (Scheme 26)
16. Connect the TP sensor. (Scheme 73)
17. Connect the accelerator cable and cruise control cable (if equipped) into the mounting bracket.
18. Connect the accelerator cable and cruise control cable (if equipped) onto the throttle linkage.
19. Install the air cleaner outlet tube.
20. Install the accelerator control splash shield. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 39

1. Disconnect the negative battery cable.
2. Remove the air cleaner outlet pipe. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).
3. Disconnect the Idle Air Control (IAC) valve and the Throttle Position (TP) sensor harness connectors. (Scheme 40)
4. Disconnect the accelerator and cruise control cables. (Scheme 82)
5. Disconnect the brake booster vacuum hose. (Scheme 41)
6. Loosen the clamp and disconnect the brake booster vacuum hose. (Scheme 42)
7. Disconnect the right side spark plug wires from coil. Remove spark plug wire routing clip push-pin and position the wires aside. (Scheme 43)
8. Remove wiring harness bracket retainer, then position wiring harness aside. (Scheme 44)
9. Remove accelerator cable routing retainer clip and wiring harness push-pin. (Scheme 45)
10. Remove the ignition coil bracket bolts. (Scheme 46)
11. Remove the bolt and position the coil and bracket aside. (Scheme 47)
12. Disconnect the vacuum hoses. (Scheme 48)
13. Remove the nut. (Scheme 49)
14. Disconnect the Powertrain Control Module (PCM) harness connector. (Scheme 50)
15. Disconnect the ground wires and position the wiring harness aside. (Scheme 51)
16. Detach the harness connector retainer. (Scheme 52)
17. Remove the intake manifold bolts and lift up the intake manifold. (Scheme 53)
18. Remove the heated PCV hose retainers and remove the heated PCV fitting. (Scheme 54)
19. Remove the intake manifold.
20. To install, reverse the removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). NOTE: Clean all the sealing surfaces before installation.

Scheme 40

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

Scheme 46

Scheme 47

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Scheme 52

Scheme 53

Scheme 54

Removal (Tribute 2.0L)

1. Remove fuel rail and Injectors. See «FUEL RAILS & INJECTORS»(ref-151901-S40619429102003010900000) under FUEL SYSTEM.
2. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 55)
3. Disconnect the Idle Air Control (IAC) harness connector and unclip the harness from the bracket. (Scheme 56)
4. Disconnect the main engine control sensor wiring. (Scheme 57) Remove the connector from the mounting bracket.
5. Disconnect the Powertrain Control Module (PCM) wire harness from the bracket. (Scheme 58)
6. Disconnect the Heated Oxygen Sensor (HO2S) wiring harness from the bracket. (Scheme 59)
7. Remove the HO2S wiring harness retainer. (Scheme 60)
8. Disconnect the Cylinder Head Temperature (CHT) sensor harness connector. (Scheme 61)
9. Detach the CHT sensor wiring harness from the clip, and remove the clip. (Scheme 62)
10. Disconnect the brake booster vacuum supply hose. (Scheme 63)
11. Disconnect the 4 vacuum hoses. (Scheme 64)
12. Disconnect the Positive Crankcase Ventilation (PCV) vacuum hose. (Scheme 65)
13. Remove the alternator. See ALTERNATOR in appropriate CHARGING SYSTEM article in ELECTRICAL.
14. Remove the Exhaust Gas Recirculation (EGR) valve bolts. (Scheme 66)
15. Remove the intake manifold. Remove the 2 nuts and 5 bolts in the sequence shown in the illustration. (Scheme 67)

Scheme 55

Scheme 56

Scheme 57

Scheme 58

Scheme 59

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

Scheme 66

Scheme 67

Installation (Tribute 2.0L)

1. Inspect intake manifold gaskets. Install new intake manifold gaskets if damaged.
2. Install the intake manifold and tighten in the sequence shown in illustration. (Scheme 68) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). NOTE: Illustration shown with the throttle body removed for clarity.
3. The EGR valve sealing surfaces are soft metals. Carefully clean all sealing surfaces and install a new EGR valve gasket. Install the EGR valve bolts. (Scheme 69) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
4. Install the alternator. See ALTERNATOR in appropriate CHARGING SYSTEM article in ELECTRICAL.
5. Connect the PCV vacuum hose. (Scheme 65)
6. Connect the 4 vacuum hoses. (Scheme 64)
7. Connect the brake booster vacuum supply hose to the intake manifold. (Scheme 63)
8. Install the CHT sensor wiring clip and attach the CHT wiring harness. (Scheme 62)
9. Connect the CHT sensor. (Scheme 61)
10. Install the retainer for the HO2S wiring harness mount. (Scheme 60)
11. Connect the HO2S sensor wiring harness to the bracket. (Scheme 59)
12. Connect the PCM wire harness to the bracket. (Scheme 58)
13. Connect the main engine control sensor wiring. (Scheme 57)
14. Connect the IAC harness connector and reattach the harness to the bracket. (Scheme 56)
15. Connect the throttle position TP sensor harness connector. (Scheme 55)
16. Install the fuel injection supply manifold. See «FUEL RAILS & INJECTORS»(ref-151901-S40619429102003010900000) under FUEL SYSTEM.

Scheme 68

Scheme 69

1. Remove the accelerator control splash shield. (Scheme 1)
2. Disconnect the wiring harness and engine vent tube from the air cleaner outlet tube. (Scheme 70)
3. Loosen the clamps, the bolt and remove the engine air cleaner intake tube and duct. (Scheme 71)
4. Remove the accelerator cable and the cruise control cable (if equipped). (Scheme 72)
5. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 73)
6. Remove the bolts and the throttle body. (Scheme 74)
7. To install, reverse removal procedure. Tighten the throttle body bolts in the sequence shown. (Scheme 75) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 70

Scheme 71

Scheme 72

Scheme 73

Scheme 74

Scheme 75

1. Disconnect negative battery cable.
2. Disconnect the breather tube and the air inlet tube. (Scheme 76)
3. Remove the bolt and the splash shield. (Scheme 77)
4. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 78)
5. Disconnect the accelerator cable, cruise control actuator cable and return spring. (Scheme 79)
6. Remove the bolts and the throttle body. (Scheme 80)
7. Remove throttle body gasket (if necessary).
8. Remove TP sensor (if necessary). See «THROTTLE POSITION SENSOR»(ref-151901-S32605234822003111300000) under ENGINE SENSORS & SWITCHES.
9. To install, reverse removal procedure.

Scheme 76

Scheme 77

Scheme 78

Scheme 79

Scheme 80

1. Remove the air cleaner outlet tube. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).
2. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 81)
3. Disconnect the accelerator cable and the cruise control cable (if equipped). (Scheme 82)
4. Remove the throttle body. (Scheme 83) NOTE: Discard the gasket.
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 81

Scheme 82

Scheme 83

Note. Numbers in parenthesis refer to numbers in the illustrations.

1. Remove the air cleaner outlet pipe. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).
2. Disconnect the accelerator cable and, if equipped, the cruise control actuator cable (1). (Scheme 84)
3. Disconnect the throttle position sensor harness connector (2). (Scheme 84)
4. Remove the screws and throttle body (3). (Scheme 84)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 84

1. Remove the air cleaner outlet tube. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).
2. Remove the nuts and the engine appearance cover. (Scheme 85)
3. Disconnect the accelerator cable and the cruise control cable (if equipped) from the throttle body lever. (Scheme 86)
4. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 87)
5. Remove bolt, stud bolt and throttle body. (Scheme 88)
6. To install, reverse removal procedure. Install a NEW gasket. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 85

Scheme 86

Scheme 87

Scheme 88

Installation (From Completely Disassembled State)

1. Install NEW turbocharger to exhaust manifold gasket.
2. Position turbocharger to exhaust manifold, install NEW nuts to studs. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
3. Install NEW turbine outlet gasket.
4. Position turbo down pipe to turbocharger.
5. Install turbocharger insulator. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
6. Install NEW nuts to studs. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
7. Install coolant return line at rear of turbo center section using NEW copper washers to banjo bolt.
8. Install coolant feed line at front of turbo center section using NEW copper washers to banjo bolt.
9. Install oil feed line to top of turbo center section.
10. Attach line retaining clamp to secure oil feed line, water feed line and water return line.
11. Install new "O" ring on to drain flange.
12. Install flange retaining bolts and tighten.
13. Install wastegate actuator rod and clip.
14. Install NEW exhaust manifold gasket.
15. Insert turbocharger coolant return line into return hose while positioning primary turbocharger assembly onto the exhaust manifold studs.
16. Position EGR pipe to the exhaust manifold and hand tighten the EGR pipe nut.
17. Install all exhaust manifold nuts and bolts. Tighten the fasteners in at least 2 steps using a center-to-outside circular pattern tightening sequence. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
18. Tighten EGR pipe nut.
19. Install coolant feed hose and clamp.
20. Position clamp over coolant return line connection.
21. Route oil feed line to rear of engine.
22. Attach oil feed line to retaining clip.
23. Tighten oil feed line fitting to three-way tee adapter.
24. Reinstall intake manifold brace.
25. Reinstall turbo down pipe bracket and bolts. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
26. Install oil drain block to oil pan upper block using NEW gasket.
27. Install front pipe to turbo down pipe using NEW gasket. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
28. Position springs and nuts to catalyst pipe and install to front pipe. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
29. Install front pipe insulator. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
30. Install exhaust manifold insulator.
31. Reconnect vacuum hose from the intake manifold vacuum port to the turbocharger wastegate actuator and position temporarily for air bypass valve. Install spring clumps at each hose connection points.
32. Reinstall radiator with charge air cooler and cooling fan. Be sure that the harness connections to both cooling fans are properly connected. See «CHARGE AIR COOLER»(ref-151901-S40043164582003120300000) .
33. Connect lower radiator hose.
34. Remove any caps or taping from openings of the turbocharger compressor, charge air cooler and throttle body.
35. Position duct onto charge air cooler bottom end-tank and the throttle body. Tighten clamps at each end.
36. Secure fuel line to bracket on duct.
37. Install purge solenoid valve body to duct using original nut.
38. Position duct onto turbocharger compressor inlet and Mass Airflow (MAF). Tighten clamps at each end.
39. Install valve cover breather hose onto duct.
40. Secure Reverse light wire and fuel line to bracket on duct.
41. Reconnect plug for Reverse light, if disconnected.
42. Install front HO2S to exhaust manifold. Connect sensor to vehicle harness.
43. Secure HO2S wire to retaining clip.
44. Position duct onto turbocharger compressor outlet and charge air cooler top end-tank. Tighten clamps at each end.
45. Install upper radiator hose.
46. Position air bypass valve route between the ducts. Tighten clamp at the end of bypass connection.
47. Connect vacuum hose from the intake manifold vacuum port to air bypass valve actuator. Install spring clamp to the vacuum hose connection.
48. Reconnect MAT and MAF sensor, if disconnected.
49. Close radiator drain plug and refill radiator. Fill with coolant to specified level and specified mixture ratio.
50. Check oil level. Adjust level as necessary.
51. Connect the negative battery cable.
52. Remove INJ or FIP fuse and crank engine 10 seconds. Wait 30 seconds, and repeat until engine oil pressure warning light turns off.
53. Start engine. Inspect for any leaks.
54. Shut off engine and check engine oil level.

Removal (B3000)

1. Disconnect the negative battery cable.
2. Disconnect the breather tube, loosen the clamp and position the air outlet tube aside. (Scheme 76)
3. Remove the bolt and the splash shield. (Scheme 77)
4. Disconnect the accelerator cable, speed control cable and return spring. (Scheme 79)
5. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 78)
6. Disconnect the Idle Air Control (IAC) valve harness connector. (Scheme 89)
7. Disconnect the 2 vacuum lines. (Scheme 90)
8. Remove nut and put dipstick aside. (Scheme 91)
9. Remove the nut and the upper intake manifold support brace. (Scheme 92)
10. Loosen the bolt and position the 42-pin wiring harness aside. (Scheme 93)
11. Remove the 42-pin harness connector from the bracket and position aside. (Scheme 94)
12. Disconnect the brake booster vacuum hose. (Scheme 95)
13. Remove the Positive Crankcase Ventilation (PCV) valve from the valve cover. (Scheme 96)
14. Remove bolts and upper intake manifold. (Scheme 97)
15. To install, reverse the removal procedure. Clean the gasket sealing surfaces. Tighten the upper intake manifold bolts in sequence. (Scheme 98) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 89

Scheme 90

Scheme 91

Scheme 92

Scheme 93

Scheme 94

Scheme 95

Scheme 96

Scheme 97

Scheme 98

Removal (Tribute 3.0L)

Note. Numbers in parenthesis refer to numbers in illustrations.

1. Remove air cleaner outlet tube. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).
2. Remove the 3 nuts and the engine appearance cover. (Scheme 85)
3. Disconnect the throttle cable (1). (Scheme 99)
4. Disconnect the cruise control cable, if equipped (2). (Scheme 99)
5. Remove the throttle cable bracket bolts (3). (Scheme 99)
6. Disconnect the Throttle Position (TP) sensor and Idle Air Control (IAC) harness connectors. (Scheme 100)
7. Disconnect the Exhaust Gas Recirculation (EGR) valve vacuum hose and EGR tube nut. (Scheme 101)
8. Disconnect the EGR vacuum regulator valve harness connector and vacuum hose. (Scheme 102)
9. Disconnect the chassis vacuum hose (1). (Scheme 103)
10. Disconnect the engine vacuum hose (2). (Scheme 103)
11. Disconnect the Positive Crankcase Ventilation (PCV) hose (3). (Scheme 103)
12. Disconnect the Vapor Management Valve (VMV) vacuum hose. (Scheme 104)
13. Disconnect the 2 harness connectors attached to the left side of the upper intake manifold. (Scheme 105)
14. Disconnect the Power Steering Pressure (PSP) sensor harness connector. (Scheme 106)
15. Position the transaxle vent hose aside.
16. Remove the nut from the wire harness. (Scheme 107)
17. Remove the 8 bolts and the upper intake manifold. (Scheme 108)

Scheme 99

Scheme 100

Scheme 101

Scheme 102

Scheme 103

Scheme 104

Scheme 105

Scheme 106

Scheme 107

Scheme 108

Installation (Tribute 3.0L)

Note. Numbers in parenthesis refer to numbers in illustrations.

1. Inspect the gaskets and replace if damaged.
2. Clean sealing surfaces.
3. Position the gaskets on the upper intake manifold.
4. Position the upper intake manifold and tighten bolts in sequence. (Scheme 109) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
5. Connect the PSP sensor harness connector. (Scheme 106)
6. Install the transaxle vent tube and bracket. (Scheme 110) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
7. Position the wire harness and install the nut. (Scheme 111) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
8. Install the 2 harness connectors on the left side of the intake manifold. (Scheme 105)
9. Install the VMV vacuum hose. (Scheme 112)
10. Connect the chassis vacuum hose (1). (Scheme 103)
11. Connect the engine vacuum hose (2). (Scheme 103)
12. Connect the PCV hose. (Scheme 103)
13. Connect the EGR vacuum regulator vacuum hose and harness connector. (Scheme 102)
14. Install the EGR valve vacuum hose and EGR tube nut. (Scheme 113) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
15. Connect the TP sensor and IAC harness connectors. (Scheme 100)
16. Install the throttle cable bracket bolts (1). (Scheme 99) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
17. Connect the accelerator cable (2). (Scheme 99)
18. Connect cruise control cable, if equipped (3). (Scheme 99)
19. Install air cleaner outlet tube. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000).

Scheme 109

Scheme 110

Scheme 111

Scheme 112

Scheme 113

Removal and installation information is not available from the manufacturer. For component locations (Scheme 114)

Scheme 114

Removal and installation information is not available from the manufacturer. For component locations (Scheme 115)

Scheme 115

1. Disconnect the battery negative cable.
2. Remove in the order indicated in the illustration. (Scheme 116)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 116

Removal and installation information is not available from the manufacturer. For component locations (Scheme 117)

Scheme 117

Removal and installation information is not available from the manufacturer. For component location (Scheme 17)

1. Disconnect the battery negative cable.
2. Remove vacuum hose. (Scheme 118)
3. Remove Variable Tumble Control System (VTCS) delay valve. (Scheme 118)
4. To install, reverse removal procedure.

Scheme 118

1. Remove air hose. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000).
2. Remove in order indicated in illustration. (Scheme 119)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 119

1. Disconnect the battery negative cable.
2. Remove the air hose, throttle body and intake manifold. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000).
3. Remove in the order indicated in the illustration. (Scheme 120)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 120

1. Disconnect the negative battery cable.
2. Disconnect the Variable Tumble Control System (VTCS) solenoid valve harness connector.
3. Disconnect the vacuum hose from the VTCS solenoid valve. (Scheme 121)
4. Remove VTCS solenoid valve. (Scheme 122)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 121

Scheme 122

Removal & Installation (B2300, B3000 & B4000)

1. Disconnect the negative battery cable.
2. Disconnect the PCM harness connector. (Scheme 123)
3. Remove the 2 nuts and PCM cover. (Scheme 124)
4. Remove PCM.
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). NOTE: PCM must be reprogrammed after installation. See «REPLACEMENT POWERTRAIN CONTROL MODULE VID BLOCK & AS BUILT DATA»(ref-151901-S23332095232003111100000) under POWERTRAIN CONTROL MODULE (B2300, B3000 & B4000) in PROGRAMMING.

Scheme 123

Scheme 124

Removal & Installation (Mazda6)

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the illustration. On 2.3L models (Scheme 125) On 3.0L models (Scheme 126)
3. To install, reverse removal procedure. NOTE: When replacing the PCM, setup the WDS tester and perform PCM configuration. See «POWERTRAIN CONTROL MODULE CONFIGURATION (MAZDA6)»(ref-151901-S10193355202003111900000) POWERTRAIN CONTROL MODULE PROGRAMMING.

Scheme 125

Scheme 126

1. Disconnect the negative battery cable.
2. Disconnect the harness connector from the PCM installed on the upper part of the brake pedal.
3. Remove the bolt and nut holding the PCM. (Scheme 127)
4. Push the PCM harness, attached to the brake pedal bracket, in the opposite direction of the brake pedal bracket. (Scheme 128)
5. While pushing the harness, push the stay until it comes apart from the stud with the PCM installation nut.
6. Remove the PCM installation nut. (Scheme 129)

Scheme 127

Scheme 128

Scheme 129

1. Disconnect the negative battery cable.
2. Remove the Transmission Control Module (TCM) in the following order: Remove the floor mat of the passenger seat. Remove TCM in the order indicated in the illustration. (Scheme 130)
3. Remove glove compartment in the following order: Bend the stoppers inward, then remove. (Scheme 131) Pull the glove compartment toward you while pushing it downward (1), then remove clip "A". (Scheme 132) Slide the glove compartment toward driver's side door (2). (Scheme 132)
4. Remove air duct in the following order: Disconnect the front blower resistor harness connector. (Scheme 133) Remove the air duct stay fastener. Slide the air duct to the right (3). (Scheme 133) Tilt the left side down to remove the air duct (4). (Scheme 133)
5. Remove PCM panel in the following order: Pull the PCM harness connector stay fastener out from the PCM panel. Remove the upper right side of the PCM panel installation nut located at the back of the blower unit as shown in illustration. (Scheme 134) Remove the lower side of the PCM panel installation nuts located at the bottom of the cabin carpet. Remove 4 installation nuts, then pull the PCM panel down to remove from installation place. (Scheme 135)
6. Disconnect PCM harness connector and remove PCM. (Scheme 136)
7. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 130

Scheme 131

Scheme 132

Scheme 133

Scheme 134

Scheme 135

Scheme 136

1. Disconnect the negative battery cable.
2. Remove the front passenger side scuff plate.
3. Remove the front passenger side trim.
4. Partially peel off the floor covering from the front of the passenger's side. WARNING: The edge of the PCM plate is sharp. Be careful not to cut yourself when handling the PCM plate.
5. Remove in the order indicated in the illustration. (Scheme 137)
6. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 137

Removal & Installation (Tribute)

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Disconnect the battery ground cable.
2. Loosen the bolt and disconnect the harness connector (1). (Scheme 138)
3. Remove the nuts and the PCM cover (2). (Scheme 138)
4. Remove the PCM. (Scheme 139)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 138

Scheme 139

VID Block & As Built Data For A Replacement PCM

A new PCM will contain latest strategy and calibration level for a particular vehicle. However, VID block will be blank and will need programming. Two procedures are available: Automatic Data Transfer from old PCM to new PCM and As Built Data or Manual Data Entry into new PCM

1. Automatic Data Transfer - performed if old PCM is capable of communicating. This is done by the use of a scan tool to retrieve data from old PCM before removing it from vehicle. Stored data can now be downloaded to new PCM after it has been replaced.
2. As Built Data Or Manual Data Entry - must be performed if PCM is damaged and/or incapable of communicating. Remove and replace old PCM. See «REMOVAL & INSTALLATION (B2300, B3000 & B4000)»(ref-151901-S01941267072003111000000) . Using scan tool, select and execute MODULE/PARAMETER REPROGRAMMING, referring to manufacturer user manual.

Make certain that all parameters are included

1. Failure to properly program tire size in revolutions per mile, (rev/mile = 63,360 divided by the tire circumference in inches) axle ratio, axle size, ABS system (4WBS or RWABS) 4x4/4x2, and/or manual/ electronic shift on the fly (MSOF/ESOF) may result in DTCs P1635, P1639.
2. You will need As Built Data to perform this procedure. If you are unable to obtain As Built Data from Mazda's Electronic Service Information website, you will need to contact Mazda Technical Assistance Hotline.

Removal and installation information is not available from the manufacturer. For component locations, For 2.3L models (Scheme 178) For 3.0L models (Scheme 179)

1. Disconnect the negative battery cable.
2. Disconnect the Camshaft Position (CMP) sensor harness connector.
3. Remove the bolt and the CMP sensor. (Scheme 140)
4. To install, reverse removal procedure. Lubricate the "O" ring with clean engine oil. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 140

1. Disconnect negative battery cable.
2. Remove the upper intake manifold. See «UPPER INTAKE MANIFOLD»(ref-151901-S13314271262003010900000) under AIR INDUCTION SYSTEMS.
3. Disconnect Camshaft Position (CMP) sensor harness connector. (Scheme 141)
4. Remove the screws and the CMP sensor. (Scheme 142)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 141

Scheme 142

Note. Numbers in parenthesis refer to numbers in illustrations.

1. Disconnect Camshaft Position (CMP) sensor (1). (Scheme 143)
2. Removing the bolt (2). (Scheme 143)
3. Remove the sensor (3). (Scheme 143)
4. To install, reverse removal procedure. (Scheme 143) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 143

Removal and installation information is not available from the manufacturer. For component locations (Scheme 178)

1. Disconnect the negative battery cable.
2. Disconnect the CMP sensor connector. (Scheme 144)
3. Remove the CMP sensor. (Scheme 144)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 144

1. Disconnect the negative battery cable.
2. Disconnect the Camshaft (CMP) sensor connector. (Scheme 180)
3. Remove the CMP sensor installation bolt.
4. Remove the CMP sensor.
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

1. Disconnect the CMP sensor connector. (Scheme 145)
2. Remove the CMP sensor installation bolt.
3. Remove the CMP sensor.
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 145

1. Disconnect the negative battery cable.
2. Disconnect the Camshaft Position (CMP) sensor connector. (Scheme 182)
3. Remove the CMP sensor installation bolt.
4. Remove the spacer.
5. Remove the CMP sensor.
6. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Removal & Installation (Tribute 2.0)

1. Disconnect the harness connector.
2. Remove the bolt. (Scheme 146)
3. Remove the Camshaft Position (CMP) sensor. (Scheme 146)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 146

Removal & Installation (Tribute 3.0)

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Disconnect the Camshaft Position (CMP) sensor harness connector (1). (Scheme 147)
2. Remove the bolt (2). (Scheme 147)
3. Remove the sensor (3). (Scheme 147)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 147

Scheme 148

Scheme 149

1. Disconnect the catalyst monitor sensor electrical connector.
2. Raise and support the vehicle. NOTE: If necessary, lubricate the catalyst monitor sensor with Penetrating and Lock Lubricant to aid in removal.
3. Using the special tool, remove the catalyst monitor sensor. NOTE: Apply a light coat of High Temperature Nickel Anti-Seize Lubricant to the threads of the catalyst monitor sensor to aid in installation.
4. To install, reverse the removal procedure.

Scheme 150

Scheme 151

1. Raise and support the vehicle.
2. Disconnect the catalyst monitor sensor electrical connector. NOTE: If necessary, lubricate the catalyst monitor sensor with Penetrating and Lock Lubricant to aid in removal.
3. Using the special tool, remove the catalyst monitor sensor. NOTE: Apply a light coat of High Temperature Nickel Anti-Seize Lubricant to the threads of the catalyst monitor sensor to aid in installation.
4. To install, reverse the removal procedure.

Scheme 152

Scheme 153

1. Disconnect the catalyst monitor sensor electrical connector.
2. Raise and support the vehicle. NOTE: If necessary, lubricate the catalyst monitor sensor with Penetrating and Lock Lubricant to aid in removal.
3. Using the special tool, remove the catalyst monitor sensor. NOTE: Apply a light coat of High Temperature Nickel Anti-Seize Lubricant to the threads of the catalyst monitor sensor to aid in installation.
4. To install, reverse the removal procedure.

1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
3. Disconnect the Crankshaft Position (CKP) sensor harness connector. (Scheme 154)
4. Remove the plug for the crankshaft timing peg. (Scheme 155)
5. Install the Special Tool (303-507) and turn the crankshaft pulley bolt to position the number one cylinder at top dead center. (Scheme 156)
6. Install the M6 bolt (1F2012-428). (Scheme 157)
7. Remove the CKP sensor. (Scheme 158)

Scheme 154

Scheme 155

Scheme 156

Scheme 157

Scheme 158

1. Install a NEW CKP sensor, but do not tighten the bolts at this time.
2. Adjust the CKP sensor with the Crankshaft Position Sensor Alignment Jig and tighten the bolts. (Scheme 159) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
3. Connect the CKP sensor harness connector.
4. Remove the M6 bolt.
5. Remove the special tool.
6. Install the plug for the crankshaft timing peg. (Scheme 155) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 159

1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
3. Disconnect the Crankshaft Position (CKP) sensor harness connector. (Scheme 160)
4. Remove the bolts and the CKP sensor. (Scheme 161)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 160

Scheme 161

Note. When installing NEW Crankshaft Position (CKP) sensor, sensor must be touching damper. CKP sensor has wear tabs that will wear off after several engine revolutions.

Note. Numbers in parenthesis refer to numbers in illustration.

1. Disconnect the Crankshaft Position (CKP) sensor harness connector (1). (Scheme 162)
2. Remove the bolts (2). (Scheme 162)
3. Remove the sensor (3). (Scheme 162)
4. To install, reverse the removal procedures. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 162

Removal (Mazda6 2.3L)

1. Remove the right front wheel.
2. Remove the splash shield.
3. Disconnect the Crankshaft Position (CKP) sensor harness connector. (Scheme 178)
4. Remove the bolts and remove the CKP sensor.

Installation (Mazda6 2.3L)

1. Perform the following procedure so that piston No. 1 is at the top dead center. Remove the right driveshaft. See appropriate AXLE SHAFTS article in DRIVE AXLES. Remove the cylinder block lower blind plug and install the SST 49-JE01-061. (Scheme 163) Turn the crankshaft pulley clockwise until it stops.
2. Using a straight edge, draw a straight line directly in the center of the 9th tooth of the crankshaft pulley pulse wheel (counting counterclockwise from the empty space). (Scheme 164)
3. Align the center line of the crankshaft position sensor and the line drawn in step 2, then install the sensor.
4. Install the CKP sensor bolts. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
5. Remove SST (49-JE01-061) then install the cylinder block lower blind plug. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
6. Install the right front driveshaft. See appropriate AXLE SHAFTS article in DRIVE AXLES.

Scheme 163

Scheme 164

Removal & Installation (Mazda6 3.0L & MPV)

1. Disconnect the negative battery cable.
2. Disconnect the CKP sensor harness connector. (Scheme 165)
3. Remove the CKP sensor. (Scheme 165)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 165

1. Disconnect the CKP sensor connector.
2. Remove the undercover.
3. Remove the CKP sensor installation bolt.
4. To install, reverse removal procedure. Adjust the air gap. While moving the CKP sensor, adjust the air gap between the CKP sensor and the 4 projections on the plate using a feeler gauge. (Scheme 166) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 166

1. Disconnect the CKP sensor harness connector.
2. Remove the undercover.
3. Remove the CKP sensor bolts. (Scheme 167)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 167

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Remove the catalytic converter.
2. Lower the vehicle.
3. Remove the dipstick and the dipstick tube bracket bolt. (Scheme 168)
4. Remove the 6 bolts and 3 nuts and remove the exhaust manifold. (Scheme 169)
5. Disconnect the Crankshaft Position (CKP) sensor harness connector (1). (Scheme 170)
6. Remove the bolt (2). (Scheme 170)
7. Remove the CKP sensor (3). (Scheme 170)
8. To install, reverse removal procedure. (Scheme 171) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 168

Scheme 169

Scheme 170

Scheme 171

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Raise and support the vehicle.
2. Remove the bolts and the right front lower splash shield. (Scheme 172)
3. Disconnect the Crankshaft Position (CKP) sensor harness connector (1). (Scheme 173)
4. Remove the bolt (2). (Scheme 173)
5. Remove the sensor (3). (Scheme 173)
6. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 172

Scheme 173

1. Disconnect the negative battery cable.
2. Pull back the Cylinder Head Temperature (CHT) sensor cover and disconnect the harness connector. (Scheme 174)
3. Remove the CHT sensor. (Scheme 175)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 174

Scheme 175

1. Remove the alternator. See appropriate CHARGING SYSTEM article in ELECTRICAL
2. Disconnect the Cylinder Head Temperature (CHT) sensor harness connector. (Scheme 176)
3. Remove the CHT sensor. (Scheme 177)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 176

Scheme 177

For many engine sensors and switches, removal and installation procedures are not available from the manufacturer. For locations of engine sensors and switches (Scheme 178)and (Scheme 179).

Scheme 178

Scheme 179

For many engine sensors and switches, removal and installation procedures are not available from the manufacturer. For locations of engine sensors and switches (Scheme 180)

Scheme 180

For many engine sensors and switches, removal and installation procedures are not available from the manufacturer. For locations of engine sensors and switches (Scheme 181)

Scheme 181

For many engine sensors and switches, removal and installation procedures are not available from the manufacturer. For locations of engine sensors and switches (Scheme 182)

Scheme 182

Removal (B3000 & B4000)

1. Disconnect negative battery cable.
2. Partially drain the cooling system.
3. Disconnect Engine Coolant Temperature (ECT) sensor harness connector.
4. Remove the ECT sensor. (Scheme 183)or (Scheme 184).
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 183

Scheme 184

1. Drain the engine coolant.
2. Disconnect the ECT sensor harness connector. (Scheme 178)
3. Remove ECT sensor. (Scheme 185)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 185

1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Disconnect the ECT sensor harness connector. (Scheme 186)
4. Remove the ECT sensor.
5. To install, reverse removal procedure. Replace gasket and refill engine coolant. See «FILLING & BLEEDING (MAZDA6)»(ref-151901-S07414664662003112000000) under COOLING SYSTEM BLEEDING.

Scheme 186

Removal and installation information is not available from the manufacturer. For component locations (Scheme 180)

1. Drain the engine coolant.
2. Disconnect the ECT sensor connector.
3. Remove the ECT sensor using the Special Service Tool (49-D015-004). (Scheme 187)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). Replace gasket as well as fill and bleed cooling system to complete installation. See «COOLING SYSTEM BLEEDING»(ref-151901-S01626594882003010900000) under COOLING SYSTEM.

Scheme 187

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Partially drain the cooling system.
2. Disconnect the Engine Coolant Temperature (ECT) harness connector (1). (Scheme 188)
3. Unclip and remove the sensor (2). (Scheme 188)
4. To install, reverse removal procedure.

Scheme 188

Removal and installation information is not available from the manufacturer. For component locations (Scheme 179)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 180)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 181)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 182)

Removal (B2300, B3000 & B4000)

Note. Sensor may be difficult to remove when engine temperature is less than 120°F (48°C). If HO2S is difficult to remove, use rust penetrant to avoid damaging threads.

1. Disconnect Heated Oxygen Sensor (HO2S) harness connector.
2. Using appropriate HO2S socket, carefully remove sensor.

Installation (B2300, B3000 & B4000)

1. Apply anti-seize to sensor threads (if reusing old sensor or if new sensor is not coated with anti-seize).
2. Install HO2S and tighten to specification. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
3. Reconnect sensor harness connector.

Removal and installation information is not available from the manufacturer. For component locations (Scheme 178)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 179)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 180)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 181)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 182)

1. Remove the bolts and the exhaust manifold heat shield. (Scheme 189)
2. Disconnect the Heated Oxygen Sensor (HO2S) harness connector. (Scheme 190)
3. Using the Special Tool (303-476), remove the HO2S. (Scheme 191)
4. To install, reverse removal procedure. Apply a light coat of high temperature nickel anti-seize lubricant to the threads of the HO2S to aid in installation. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 189

Scheme 190

Scheme 191

Removal and installation information is not available from the manufacturer. For component locations (Scheme 180)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 182)

1. Disconnect the negative battery cable.
2. Disconnect the knock sensor harness connector. (Scheme 36)
3. Remove the bolt and the KS. (Scheme 192)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 192

1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
3. Disconnect the knock sensor harness connector. (Scheme 193)
4. Remove the bolt and the knock sensor. (Scheme 194)

Scheme 193

Scheme 194

Note. Numbers in parenthesis refer to numbers in illustration

1. Remove the intake manifold. See «INTAKE MANIFOLD»(ref-151901-S31364365882003111000000) under AIR INDUCTION SYSTEMS.
2. Disconnect the knock sensor harness connector. (Scheme 195)
3. Remove the bolt (1). (Scheme 196)
4. Remove the sensor (2). (Scheme 196)
5. To install, reverse the removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 195

Scheme 196

1. Remove the intake manifold. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS.
2. Remove the knock sensor bolt and remove the knock sensor. (Scheme 197)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 197

1. Disconnect the negative battery cable.
2. Disconnect the knock sensor harness connector. (Scheme 179)
3. Remove the knock sensor.
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

1. Disconnect the negative battery cable.
2. Remove the intake manifold bracket.
3. Remove the knock sensor using the Special Service Tool (49-H018-001). (Scheme 198)and (Scheme 199).
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 198

Scheme 199

Removal & Installation (MPV, Protege & Protege5)

1. Disconnect the knock sensor harness connector. (Scheme 181)or (Scheme 182).
2. Remove the knock sensor.
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

1. Raise and support the vehicle.
2. Disconnect the knock sensor harness connector, located on the right-hand side of the cylinder block, and remove the connector from the mounting bracket. (Scheme 200)
3. Remove the nut and the knock sensor. (Scheme 201)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 200

Scheme 201

1. Disconnect the knock sensor harness connector. (Scheme 202)
2. Remove the bolt and the knock sensor. (Scheme 203)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 202

Scheme 203

1. Disconnect the negative battery cable.
2. Disconnect the Manifold Absolute Pressure (MAP) sensor harness connector. (Scheme 204)
3. Remove the bolt and lift the MAP sensor out of the intake manifold. (Scheme 205)
4. To install, reverse removal procedure.

Scheme 204

Scheme 205

Removal and installation information is not available from the manufacturer. For component locations (Scheme 178)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 180)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 182)

1. Disconnect negative battery cable.
2. Disconnect the Mass Air Flow/Intake Air Temperature (MAF/IAT) sensor harness connector. (Scheme 206)
3. Disconnect the air cleaner outlet tube from the MAF/IAT sensor. (Scheme 207)
4. Remove the 4 bolts and the MAF/IAT sensor. (Scheme 208)

Scheme 206

Scheme 207

Scheme 208

Removal and installation information is not available from the manufacturer. For component locations (Scheme 178)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 179)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 181)

1. Remove the air cleaner outlet tube. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000) under AIR INDUCTION SYSTEMS.
2. Disconnect the Mass Air Flow/Intake Air Temperature (MAF/IAT) sensor harness connector. (Scheme 209)
3. Remove the 4 nuts and the MAF/IAT sensor. (Scheme 210)
4. To install, reverse removal procedure.

Scheme 209

Scheme 210

1. Disconnect the negative battery cable.
2. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 73)
3. Remove the bolts and the TP sensor. (Scheme 211)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 211

1. Disconnect the negative battery cable.
2. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 78)
3. Remove the 2 screws and the TP sensor. (Scheme 212)

Scheme 212

Installation (B3000)

1. Slide the rotary tangs into position over the throttle shaft blade, then rotate the TP sensor.
2. To complete installation, reverse remaining removal procedures. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .

Note. Numbers in parenthesis refer to numbers in illustration.

1. Remove the accelerator control splash shield. (Scheme 6)
2. Disconnect the Throttle Position (TP) sensor harness connector (1). (Scheme 213)
3. Remove the bolts and the TP sensor (2). (Scheme 213)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 213

Removal and installation information is not available from the manufacturer. For component locations (Scheme 178)

Removal and installation information is not available from the manufacturer. For component locations (Scheme 179)

Removal (Miata)

1. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 180)
2. Remove the attaching screws.
3. Remove the TP sensor.

Installation (Miata)

1. Verify that the throttle valve is fully closed.
2. Catch the tang of the throttle body on the TP sensor plastic rotor.
3. Position the TP sensor on the throttle body so that the mounting holes align.
4. Install the attaching screws. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
5. Release the throttle.

Removal (MPV)

1. Disconnect the Throttle Position (TP) sensor harness connector.
2. Remove the TP sensor attaching screws. (Scheme 214)
3. Remove the TP sensor from the throttle body.

Scheme 214

Installation (MPV)

1. Verify that the throttle valve is fully closed.
2. Install the TP sensor to the throttle body.
3. Adjust the TP sensor.
4. Tighten the TP sensor attaching screws. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000) .
5. Verify that the throttle valve moves smoothly.
6. Reconnect the TP sensor connector.

Removal and installation information is not available from the manufacturer. For component locations (Scheme 182)

1. Disconnect the Throttle Position (TP) sensor harness connector. (Scheme 215)
2. Remove the 2 screws and the TP sensor. (Scheme 216)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 215

Scheme 216

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Remove the nuts and the engine appearance cover. (Scheme 85)
2. Disconnect the Throttle Position (TP) harness connector (1). (Scheme 217)
3. Remove the screws (2). (Scheme 217)
4. Remove the sensor (3). (Scheme 217)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 217

1. Remove the spark plug wires by slightly twisting while pulling upwards.
2. Disconnect the ignition coil harness connector. (Scheme 218)
3. Remove the 4 bolts and the ignition coil. (Scheme 219)
4. To install, reverse removal procedure. Wipe the coil towers with a clean cloth dampened with soap and water. Remove any soap film and dry with compressed air. Inspect for cracks, carbon tracking and dirt. Apply silicone dielectric compound to the inside of the spark plug wire boots. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 218

Scheme 219

1. Disconnect the ignition coil harness connector. (Scheme 220)
2. Disconnect the spark plug wires by twisting while pulling upward. (Scheme 221)
3. Disconnect the heater hose support from the stud. (Scheme 222)
4. Remove the two bolts and one stud and the ignition coil. (Scheme 223)
5. To install, reverse removal procedure. Wipe the ignition coil towers with a clean cloth dampened with soap and water. Use a small, clean tool to coat the entire interior surface of the boot with silicone brake caliper grease. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 220

Scheme 221

Scheme 222

Scheme 223

1. Disconnect the negative battery cable.
2. Disconnect the ignition coil harness connectors. (Scheme 224)
3. Remove the spark plug wires. (Scheme 225)
4. Remove the bolts and remove the ignition coil. (Scheme 226)
5. To install, reverse removal procedure. Wipe the coil towers with a clean cloth dampened with soap and water. Be sure to reinstall the radio ignition interference capacitor under the correct ignition coil mounting bolt. Apply a silicone dielectric compound to the inside of the spark plug wire coil boots. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 224

Scheme 225

Scheme 226

1. Disconnect the negative battery cable.
2. Remove the plug hole plate. Lift off and remove the plug hole plate from the installation areas (rubber and clips) as shown in the illustration. (Scheme 227)
3. Remove in the order indicated in the illustration. (Scheme 228) To install, reverse removal procedure.

Scheme 227

Scheme 228

1. Disconnect the negative battery cable.
2. On left side, remove the plug hole plate. See TIMING CHAIN under REMOVAL & INSTALLATION in appropriate ENGINE - MECHANICAL article. On right side, remove dynamic chamber. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS.
3. Disconnect ignition coil harness connector. (Scheme 229)
4. Remove ignition coil. (Scheme 229)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 229

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the illustration. (Scheme 230)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 230

1. Disconnect the negative battery cable.
2. On left side, remove the plug hole plate. See TIMING CHAIN in appropriate ENGINE - MECHANICAL article. On right side, remove the dynamic chamber. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS.
3. Remove in the order indicated in the illustration. (Scheme 231)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 231

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the illustration. (Scheme 232)
3. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 232

1. Disconnect the battery ground cable.
2. Disconnect the spark plug wires. (Scheme 233)
3. Disconnect the ignition coil harness connector. (Scheme 234)
4. Remove the bolts and remove the ignition coil. (Scheme 235)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 233

Scheme 234

Scheme 235

Note. Numbers in parenthesis refer to numbers in illustrations.

1. To remove the ignition coil-on-plug (left-hand side): Remove the nuts and the engine appearance cover. (Scheme 85) Disconnect the harness connector (1). (Scheme 236) Remove the bolt (2). (Scheme 236) Remove the coil-on-plug (3). (Scheme 236)
2. To remove the ignition coil-on-plug (right-hand side): Remove the upper intake manifold. See «UPPER INTAKE MANIFOLD»(ref-151901-S13314271262003010900000) under AIR INDUCTION SYSTEMS. Disconnect the harness connector (1). (Scheme 237) Remove the bolt (2). (Scheme 237) Remove the coil-on-plug (3). (Scheme 237)
3. To install, reverse removal procedure. Apply a light film of silicone brake caliper grease and dielectric compound to the interior of the spark plug boot prior to installation. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 236

Scheme 237

Removal & Installation (Millenia)

Note. A primary suction side sock/strainer is attached to the fuel pump pick-up located inside the fuel tank. The main high pressure side filter is located on top of the fuel tank and is accessed through the trunk via an access panel.

Scheme 238

1. Disconnect negative battery cable. Remove 3 screws from fuel tank access panel in trunk.
2. Disconnect fuel hoses from fuel filter. Remove fuel filter and bracket.
3. To install, reverse removal procedure. Ensure fuel hoses are pushed completely onto filter nozzles.
4. Reconnect negative battery cable. Check for leaks.

1. Relieve the system pressure. Refer to «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000)
2. Disconnect the negative battery cable.
3. Remove fuel pump assembly. Remove the necessary components and the fuel filter. see scheme 261
4. Install in the reverse order of removal.
5. Verify that the fuel hoses are are properly connected.
6. Reconnect negative battery cable. Test for leaks.

Scheme 239

1. Relieve the system pressure. Refer to «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Raise the rear of the vehicle and support it with safety stands.
4. Remove the fuel filter protector.
5. Remove in the order indicated in (Scheme 239).
6. Install in the reverse order of removal.
7. Reconnect negative battery cable. Check for leaks.

Removal & Installation (Protege)

Note. Fuel filter is located in fuel tank as an attachment on fuel pump assembly.

1. Relieve the system pressure. Refer to «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000)
2. Disconnect the negative battery cable.
3. Remove fuel pump assembly. Remove the necessary components and the fuel filter. see scheme 263
4. Install in the reverse order of removal.
5. Verify that the fuel hoses are are properly connected.
6. Reconnect negative battery cable. Test for leaks.

1. Relieve the fuel pressure. Refer to «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the battery ground cable.
3. Loosen the clamp and remove the fuel filter. see scheme 264
4. Install replacement fuel filter.
5. Install new fuel line clips.To install, reverse the removal procedure.
6. Check for fuel leaks.

On returnless systems, regulator is inside fuel tank. The pressure regulator is an integral part of fuel pump. See appropriate procedure under FUEL PUMP. For component locations of the fuel system (Scheme 240)

Scheme 240

Fuel pressure regulator is mounted to fuel pump and sending unit assembly and may be replaced separately. (Scheme 241)

Scheme 241

Due to the adoption of the mechanical returnless fuel system, the pressure regulator cannot be inspected separately. See appropriate procedure under FUEL PUMP .

1. Relieve system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the battery negative cable.
3. Remove in the order indicated in the illustration. (Scheme 242)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 242

On returnless systems, regulator is inside fuel tank. Pressure regulator is an integral part of fuel pump. See appropriate procedure under FUEL PUMP .

1. Remove fuel tank.
2. Clean the area around the fuel pump mounting flange.
3. Using Fuel Sender Wrench (310-075), remove fuel tank sending unit assembly locking retainer ring. (Scheme 243)
4. Remove the fuel pump assembly. (Scheme 243) CAUTION: The fuel pump must be handled carefully to avoid damage to the float arm and filter.
5. Remove and discard the fuel pump mounting gasket.

Scheme 243

1. Clean the fuel pump mounting flange and the fuel tank mounting surface.
2. Install the fuel pump mounting gasket.
3. Using Fuel Sender Wrench (310-075), tighten the fuel pump assembly locking retainer ring. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). (Scheme 244)
4. Install fuel tank.

Scheme 244

1. Relive fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Remove the rear seat cushion.
4. Remove in the order indicated in the illustration. (Scheme 245)
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). Verify that the fuel tank mark is aligned with the fuel pump mark as shown in illustration. (Scheme 246)

Scheme 245

Scheme 246

1. Relive fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Uncover the rear package trim.
4. Remove the service hole cover.
5. Remove in the order indicated in the illustration. (Scheme 247)
6. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 247

1. Relieve system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Remove the front seats.
4. Remove the front scuff plates.
5. Remove the rear scuff plates.
6. Remove the console lower cover.
7. Loosen the parking brake lever installation bolts.
8. Partially peel back the floor covering until the service hole cover appears.
9. Remove in the order indicated in the illustration. (Scheme 248)
10. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 248

Removal (Protege & Protege5)

1. Disconnect negative battery cable.
2. Release fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
3. Remove rear seat cushion. Remove fuel pump access cover.
4. Disconnect 4-pin harness connector.
5. Disconnect both fuel lines. See «DISCONNECT»(ref-151901-S08839367772003112100000) under FUEL LINE CONNECTORS (MAZDA6, MPV, PROTEGE & PROTEGE5).
6. Remove fuel pump and sending unit assembly. (Scheme 249)
7. Remove fuel pump from assembly.
8. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 249

1. Relieve fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the battery ground cable.
3. Lift the left rear seat cushion.
4. Lift the access cover on the floor scuff plate to access one of the pin-type retainers. (Scheme 250) Position the carpet aside.
5. Remove the screws and the fuel pump module access cover. (Scheme 251)
6. Disconnect the harness connectors. (Scheme 252)
7. Disconnect the fuel and vapor lines from the fuel tank. See «FUEL LINE CONNECTORS (B2300, B3000, B4000 & TRIBUTE)»(ref-151901-S12316479762003010900000).
8. Remove the gas cap.
9. Using the Fuel Sender Wrench (310-069), remove the fuel pump module. (Scheme 253)
10. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 250

Scheme 251

Scheme 252

Scheme 253

1. Disconnect the battery ground cable.
2. Relieve the fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
3. Remove the upper intake manifold. See «INTAKE MANIFOLD»(ref-151901-S31364365882003111000000) under AIR INDUCTION SYSTEMS.
4. Disconnect the fuel injector harness connectors. (Scheme 254)
5. Disconnect the fuel injector wiring harness from the fuel injector supply manifold. (Scheme 255)
6. Disconnect the fuel tube spring lock coupling. See «DISCONNECT (SPRING LOCK COUPLING)»(ref-151901-S20242567082003010900000) under FUEL LINE CONNECTORS (B2300, B3000, B4000 & TRIBUTE). (Scheme 256)
7. Using the Special Tool (310-040), disconnect the fuel tube. (Scheme 257)
8. Remove the bolts and the spacer insulators. (Scheme 258)
9. Remove the fuel supply manifold.
10. Remove the retaining clip (1). (Scheme 259)
11. Remove the fuel injector (2). (Scheme 259)
12. Remove and discard the fuel injector "O" ring seals.
13. To install, reverse removal procedure. Lubricate the NEW fuel injector "O" ring seals with clean engine oil. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 254

Scheme 255

Scheme 256

Scheme 257

Scheme 258

Scheme 259

1. Disconnect the battery ground cable.
2. Relieve the fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000) under FUEL SYSTEM.
3. Remove the upper intake manifold. See «UPPER INTAKE MANIFOLD»(ref-151901-S13314271262003010900000) under AIR INDUCTION SYSTEMS.
4. Disconnect the engine control sensor wiring from the fuel injectors. (Scheme 260)
5. Disconnect the fuel tube spring lock coupling. See «DISCONNECTING (SPRING LOCK COUPLING)»(ref-151901-S20242567082003010900000) under FUEL LINE CONNECTORS (B2300, B3000, B4000 & TRIBUTE). (Scheme 261)
6. Disconnect the vacuum hose. (Scheme 262)
7. Remove the 4 bolts. (Scheme 263)
8. Remove the fuel injection supply manifold and the fuel injectors as an assembly. (Scheme 263)
9. Remove the fuel injectors. (Scheme 264)
10. Remove and discard the fuel injector "O" ring seals. (Scheme 265)
11. To install, reverse the removal procedure. Lubricate the NEW fuel injector "O" ring seals with clean engine oil. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 260

Scheme 261

Scheme 262

Scheme 263

Scheme 264

Scheme 265

1. Remove the intake manifold. See «INTAKE MANIFOLD»(ref-151901-S31364365882003111000000) under AIR INDUCTION SYSTEMS.
2. Disconnect the fuel tube spring lock coupling. See «DISCONNECTING (SPRING LOCK COUPLING)»(ref-151901-S20242567082003010900000) under FUEL LINE CONNECTORS (B2300, B3000, B4000 & TRIBUTE).
3. Disconnect the 6 fuel injector harness connectors.
4. Remove the 4 bolts from the fuel tube.
5. Disconnect the fuel pulse damper vacuum hose. (Scheme 266)
6. Remove the fuel injection supply manifold. (Scheme 267)
7. Remove the fuel injectors from the fuel injection supply manifold. (Scheme 268)
8. Remove and discard the fuel injector "O" ring seals. (Scheme 265)
9. To install reverse removal procedure. Lubricate the NEW fuel injector "O" ring seals with clean engine oil. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 266

Scheme 267

Scheme 268

1. Relieve fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Remove components in the order indicated. (Scheme 269) For fuel injector clip removal, go to next step.
4. Remove fuel injector clips as follows: Insert a screwdriver between the injector cup and the clip fingers. (Scheme 270) NOTE: When rotating the screwdriver to spread the clip fingers, bend them sufficiently to make sure they release from the notched edge of the injector cup. (Scheme 271) Rotate the screwdriver to spread the clip fingers and remove them from the injector cup. Pull the injector and clip out of the rail. Grasp the clip with a pair of pliers. Pull the clip parallel to the injector groove, and remove it from the injector. (Scheme 272) Discard the clip.
5. To install, reverse removal procedure. (Scheme 269) Tighten fasteners to specification. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). To install fuel injector clips, go to next step.
6. Install fuel injector clips as follows: Lightly lubricate the injector groove and "O" ring. Pre-attach a new clip in the injector groove. When the clip is attached correctly, the central area of the injector and the clip finger positions are aligned. Hold the injector firmly, push the clip into the injector until the clip stops sliding. (Scheme 273) Verify that the injector harness connector position is correct, and press the injector and clip into the injector cup. Continue pressing until the clip contacts the lower surface of the injector cup. Verify that the injector and clip are correctly attached with the clip locked onto the injector cup notch.

Scheme 269

Scheme 270

Scheme 271

Scheme 272

Scheme 273

1. Relieve system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Remove the dynamic chamber. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS.
4. Disconnect the fuel injector harness connectors and remove the harness from the fuel distributor.
5. Remove in the order indicated in the illustration. (Scheme 274)
6. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 274

1. Relieve fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the negative battery cable.
3. Remove the dynamic chamber. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS.
4. Remove in the order indicated in the illustration. (Scheme 275)
5. To install injectors, perform the following procedures: Apply a small amount of engine oil to the "O" rings and install them into the fuel distributor. Verify that the "O" rings and the fuel injector sealing surfaces are free of foreign material and clean with gasoline if necessary. Install the fuel injectors in the fuel distributor with light twisting motion so that the "O" rings will not be folded. (Scheme 276)

Scheme 275

Scheme 276

1. Relieve fuel system pressure. See «FUEL SYSTEM PRESSURE RELEASE»(ref-151901-S29954760902003010900000).
2. Disconnect the battery negative cable.
3. Remove the accelerator cable bracket. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS.
4. Disconnect the fuel injector harness connectors and remove the harness from the fuel distributor.
5. Remove in the order indicated in the illustration. (Scheme 277)
6. To install the fuel injector, perform the following procedure: Install each fuel injector as indicated in the table. See «FUEL INJECTOR IDENTIFICATION»(ref-151901-S07789885202003120400000) table. FUEL INJECTOR IDENTIFICATION Cylinder No. Fuel Injector Body Color 1 & 2 Green 3 & 4 Purple Use NEW fuel injector "O" rings. Apply a small amount of engine oil to the "O" rings and install them on the fuel distributor. Verify that the "O" rings and the fuel injector sealing surfaces are free of foreign material. Clean with gasoline if necessary. Align the fuel injector notch with the fuel distributor and install the fuel injectors on the fuel distributor with a light twisting motion so that the "O" rings will not be folded. (Scheme 276)
7. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 277

Note. Numbers in parenthesis refer to numbers in the illustration.

1. Relieve the fuel system pressure. See «FUEL PRESSURE REGULATOR»(ref-151901-S35637167172003010900000).
2. Disconnect the battery ground cable.
3. Remove the air cleaner outlet pipe. See «AIR CLEANER OUTLET PIPE»(ref-151901-S32533760452003111000000) under AIR INDUCTION SYSTEMS.
4. Using the special tool, disconnect the fuel line. See «FUEL LINE CONNECTORS (B2300, B3000, B4000 & TRIBUTE)»(ref-151901-S12316479762003010900000).
5. Disconnect the accelerator cable and, if equipped, the cruise control actuator cable. (Scheme 278)
6. Disconnect the fuel pulse damper vacuum hose. (Scheme 279)
7. Disconnect the fuel injector harness connectors. (Scheme 280)
8. Remove the bolts and remove the fuel supply manifold. (Scheme 281)
9. Release the retaining clips (1). (Scheme 282)
10. Remove the fuel injectors (2). (Scheme 282)
11. To install, reverse removal procedure. Inspect "O" rings and replace if necessary. (Scheme 283) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 278

Scheme 279

Scheme 280

Scheme 281

Scheme 282

Scheme 283

Note. Numbers in illustrations refer to numbers in the illustration.

1. Remove the upper intake manifold. See «UPPER INTAKE MANIFOLD»(ref-151901-S13314271262003010900000) under AIR INDUCTIONS SYSTEMS.
2. Disconnect the fuel line. See «DISCONNECT (SPRING LOCK COUPLING)»(ref-151901-S20242567082003010900000) under FUEL LINE CONNECTORS (B2300, B3000, B4000 & TRIBUTE).
3. Disconnect the 6 fuel injector harness connectors and release the wiring harness locators from the fuel injection supply manifold. (Scheme 284)
4. Remove the vacuum hose. (Scheme 285)
5. Remove the bolts and the manifold. (Scheme 285)
6. Release the retaining clips (1). (Scheme 282)
7. Remove the fuel injectors (2). (Scheme 282)
8. To install, reverse removal procedure. Inspect "O" rings and replace if necessary. (Scheme 283) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 284

Scheme 285

1. Lower spare tire out of the way.
2. Raise the vehicle on a hoist.
3. Disconnect fuel vapor hose.
4. Disconnect the wire harness from the canister vent retainer.
5. Remove the 2 nuts and bolts.
6. Remove in order shown in illustration. (Scheme 286)
7. To install, reverse removal procedure.

Scheme 286

Removal and installation information is not available from the manufacturer. For location of the charcoal canister (Scheme 287)

Scheme 287

Removal and installation information is not available from the manufacturer. For location of the charcoal canister (Scheme 288)

Scheme 288

Removal and installation information is not available from the manufacturer. For location of the charcoal canister (Scheme 289)

Scheme 289

Removal & Installation (Protege & Protege 5)

Removal and installation information is not available from the manufacturer. For location of the charcoal canister (Scheme 290)or (Scheme 291).

Scheme 290

Scheme 291

1. Disconnect the battery.
2. Raise and support the vehicle.
3. Disconnect the Evaporative Emissions (EVAP) canister outlet tube. (Scheme 292)
4. Disconnect the canister vent solenoid harness connector and the remote canister vent hose. (Scheme 293)
5. Remove the EVAP canister bracket assembly. (Scheme 294)
6. Remove the remote canister vent hose, dust separator and canister vent solenoid. (Scheme 295)
7. Remove the EVAP canister outlet tube. (Scheme 296)
8. Remove the EVAP canister. (Scheme 297)
9. To install, reverse removal procedure. Lubricate all "O" ring seals with MERPOL® "O" Ring Seal Lubricant. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000). Check for leaks and carry out the evaporative emission repair verification drive cycle. See DRIVE CYCLES in appropriate SELF DIAGNOSTICS article.

Scheme 292

Scheme 293

Scheme 294

Scheme 295

Scheme 296

Scheme 297

1. Disconnect negative battery cable.
2. Remove the plug hole plate. Lift off and remove the plug hole plate from the installation areas (rubber and clips) as shown in the illustration. (Scheme 227)
3. Remove the high-tension lead.
4. Disconnect Oil Control Valve (OCV) harness connector.
5. Remove the ventilation hose.
6. Remove the cylinder head cover.
7. Remove bolt and OCV. (Scheme 298)

Scheme 298

1. Install the Oil Control Valve (OCV). See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
2. Apply silicone sealant to the cylinder head cover mating faces as shown in the illustration. (Scheme 299)
3. Install the cylinder head cover with a new gasket.
4. Tighten cylinder head bolts in the order indicated in the illustration. (Scheme 300) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
5. Install the ventilation hose.
6. Install the OCV connector.
7. Install the high-tension lead.
8. Install the plug hole plate.

Scheme 299

Scheme 300

Removal (Mazda6 3.0L)

1. For the right side, perform the following procedure: Disconnect the negative battery cable. Remove the plug hole plate. Remove the dynamic chamber. See «INTAKE AIR SYSTEM»(ref-151901-S16026920392003111900000) under AIR INDUCTION SYSTEMS. Remove the ignition coil. See «IGNITION COIL PACK»(ref-151901-S38507721422003111100000) under IGNITION SYSTEMS. Remove the Oil Control Valve (OCV) connector. Remove the ventilation hose. Remove the cylinder head cover tightening bolt. Remove the OCV with cylinder head cover raised as shown in the illustration. (Scheme 301)
2. For the left side, perform the following procedure: Disconnect the negative battery cable. Remove the plug hole plate. Remove the ignition coil. See «IGNITION COIL PACK»(ref-151901-S38507721422003111100000) under IGNITION SYSTEMS. Remove the Oil Control Valve (OCV) harness connector. Remove the ventilation hose. Remove the OCV. (Scheme 302)

Scheme 301

Scheme 302

Installation (Mazda6 3.0L)

1. Install the Oil Control Valve (OCV). See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
2. Apply silicone sealant to the cylinder head cover mating faces as shown in illustration. (Scheme 303)
3. Install the cylinder head cover with a NEW gasket.
4. Tighten the bolts in the order in the illustration. (Scheme 304) See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).
5. Install the ventilation hose.
6. Install the OCV harness connector.
7. Install the ignition coil. See «IGNITION COIL PACK»(ref-151901-S38507721422003111100000) under IGNITION SYSTEM.
8. Install the plug hole plate.

Scheme 303

Scheme 304

Removal & Installation (Mazda6 2.3L & Miata)

1. Disconnect negative battery cable.
2. Remove timing belt. See appropriate TIMING BELT article in ENGINES.
3. Remove the variable valve timing actuator. (Scheme 305)
4. Loosen the variable valve timing actuator bolt.
5. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 305

Note. The variable valve timing actuator camshaft sprocket is integrated with the variable valve timing actuator and cannot be disassembled.

1. Remove the hydraulic lash adjuster. See appropriate ENGINE - MECHANICAL article in ENGINES
2. Secure the camshaft sprocket in a vise using the Special Service Tool (49-1352-060). (Scheme 306)
3. Loosen the variable valve timing actuator tightening bolt.
4. Remove the variable valve timing actuator.

Scheme 306

1. Install the variable valve timing actuator using a NEW bolt.
2. Secure the camshaft sprocket in a vise using the SST. (Scheme 306)
3. Tighten the variable valve timing actuator bolt in 2 steps. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

1. Disconnect the negative battery cable.
2. Disconnect Oil Control Valve (OCV) harness connector. (Scheme 307)
3. Remove OCV. (Scheme 307)
4. To install, reverse removal procedure. See «TORQUE SPECIFICATIONS»(ref-151901-S31341501772003010900000).

Scheme 307