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Engine Controls - Specifications: Other Mazda 626 GD

Specifications 8 illustrations ~296 words

ENGINE COMPRESSION

ApplicationRatio
B2200 (2.2L)8.6:1
B2600i (2.6L)8.4:1
Miata (1.6L)9.4:1
MPV
2.6L (4-Cyl.)8.4:1
3.0L (V6)8.5:1
MX-6 & 626 (2.2L)
Non-Turbo8.6:1
Turbo7.8:1
Protege (1.8L)
DOHC9.0:1
SOHC8.9:1
RX7 (1.3L Rotary)
Non-Turbo9.7:1
Turbo9.0:1
323 (1.6L)9.3:1
929 (3.0L V6)
DOHC8.9:1
SOHC8.5:1

COMPRESSION RATIO SPECIFICATIONS

ApplicationMinimum psi (kg/cm 2 ) @ RPMStandard psi (kg/cm 2 ) @ RPM
B2200 (2.2L)121 (8.5) @ 300173 (12.2) @ 300
B2600i (2.6L)142 (10.0) @ 280185 (13.0) @ 280
Miata (1) (1.6L)135 (9.5) @ 300192 (13.5) @ 300
MPV
2.6L (4-Cyl.)142 (10.0) @ 280185 (13.0) @ 280
3.0L (V6)121 (8.5) @ 300164 (11.5) @ 300
MX-6 (2.2L)
Non-Turbo114 (8.0) @ 270162 (11.4) @ 270
Turbo98 (6.9) @ 260139 (9.8) @ 260
Protege (1.8L)
SOHC (1)121 (8.5) @ 300173 (12.2) @ 300
DOHC (1)128 (9.0) @ 300182 (12.8) @ 300
RX7 (1.3L) (2)43 (3.0) @ 25085 (6.0) @ 250
323 (1.6L) (1)135 (9.5) @ 300192 (13.5) @ 300
626 (2.2L)
Non-Turbo114 (8.0) @ 270162 (11.4) @ 270
Turbo98 (6.9) @ 260139 (9.8) @ 260
929 (3.0L V6)
SOHC114 (8.0) @ 300164 (11.5) @ 300
DOHC125 (8.8) @ 300179 (12.6) @ 300
(1) Difference between cylinders should not exceed 28 psi (2.0 kg/cm 2 ). (2) Difference between chambers should not exceed 21 psi (1.5 kg/cm 2 ).
(1)Difference between cylinders should not exceed 28 psi (2.0 kg/cm 2 ).
(2)Difference between chambers should not exceed 21 psi (1.5 kg/cm 2 ).

COMPRESSION PRESSURE SPECIFICATIONS

All Models

No adjustment is required.

4-Cylinder

Note. LEFT SIDE and RIGHT SIDE refer to left and right sides of engine, as viewed from flywheel.

  1. Left Side - All Exhaust.
  2. Right Side - All Intake.

V6

  1. Inner Valves (Both Banks) - All Intake.
  2. Outer Valves (Both Banks) - All Exhaust.

All Models Except RX7

ApplicationPrimary OhmsSecondary Ohms
B2200 (Carbureted)1.0-1.36000-30,000
B2200 (PFI).81-.996000-30,000
B2600i
Right Side.77-.956000-30,000
Left Side900-1100N/A
Miata.78-.9411,200-15,200
MPV
2.6L (4-Cyl.)
Right Side.77-.956000-30,000
Left Side900-1100N/A
3.0L (V6).81-.996000-30,000
MX-6 & 626
Non-Turbo.77-.9510,300-13,900
Turbo.72-.8810,300-13,900
Protege & 323.81-.9910,000-16,000
929.72-.8810,000-30,000
(1) Measured in ohms at 68°F (20°C).
(1)Measured in ohms at 68°F (20°C).

IGNITION COIL RESISTANCE (1)

RX7

ApplicationResistance - Ohms @ 68°F (20°C)
RX70.0-1.0

IGNITION COIL/IGNITER RESISTANCE

DISTRIBUTOR SENSORS

ApplicationOhms
B2200 (Carbureted)900-1200
MPV (3.0L V6)900-1200
MX-6 & 626
Non-Turbo900-1200
Turbo (Check Ignitor Terminals)
"A" & "B"210-260
"C" & "D"210-260
"E" & "F"210-260

DISTRIBUTOR PICK-UP COIL RESISTANCE

Application(1) Ohms
Green & Black Wires110-210
Red & White Wires110-210
(1) Check 4-way connector terminals.
(1)Check 4-way connector terminals.

CRANK ANGLE SENSOR RESISTANCE

HIGH TENSION WIRE RESISTANCE

High tension wire resistance for all models should be 4900 ohms per foot.

High Tension Wire Routing (RX7)

For high tension wire routing (Scheme 4)

Scheme 4

Scheme 4: High Tension Wire Routing (RX7)
Scheme 4: High Tension Wire Routing (RX7)

SPARK PLUGS

ApplicationPlug Type (NGK)
B2200
CarburetedBPR5ES or BPR6ES
Fuel-InjectedBPR5ES-11 or BPR6ES-11
B2600iZFR5F-11 or ZFR6F-11
MiataBKR5E-11, BKR6E-11 or BKR7E-11
MPVZFR5F-11 or ZFR6F-11
MX-6 & 626ZFR5F-11, ZFR6F-11 or ZFR7F-11
Protege
DOHCBKR5E-11, BKR6E-11 or BKR7E-11
SOHCBKR5E-11 or BKR6E-11
323BKR5ES-11 or BKR6ES-11
(1) RX7
LeadingBUR7EQ
TrailingBUR9EQ
929
DOHCZFR5F-11 or ZFR6F-11
SOHCZFR5F-11, ZFR6F-11 or ZFR7F-11
(1) (Scheme 5)

SPARK PLUG TYPE

ApplicationGap In. (mm)Torque Ft. Lbs. (N.m)
B2200 (Carbureted).031 (.80)13 (18)
RX7(1) .055 (1.3)11 (15)
All Others.041 (1.0)13 (18)
(1) Side gap type spark plug. (Scheme 5)
(1)Side gap type spark plug. (Scheme 5)

SPARK PLUG SPECIFICATIONS

Scheme 5

Scheme 5
Scheme 5

FIRING ORDER & DISTRIBUTOR ROTATION

Note. RX7 firing order is 1-2.

Firing Order & Distributor Rotation (B2200, B2600i & MPV - 4-Cyl.). Scheme 6

Scheme 6: Firing Order & Distributor Rotation (B2200, B2600i & MPV - 4-Cyl.)
Scheme 6: Firing Order & Distributor Rotation (B2200, B2600i & MPV - 4-Cyl.)

Firing Order & Coil Pack (Miata). Scheme 7

Scheme 7: Firing Order & Coil Pack (Miata)
Scheme 7: Firing Order & Coil Pack (Miata)

Firing Order & Distributor Rotation (MX-6 & 626 Turbo). Scheme 8

Scheme 8: Firing Order & Distributor Rotation (MX-6 & 626 Turbo)
Scheme 8: Firing Order & Distributor Rotation (MX-6 & 626 Turbo)

Firing Order & Distributor Rotation (Protege & 323 DOHC). Scheme 9

Scheme 9: Firing Order & Distributor Rotation (Protege & 323 DOHC)
Scheme 9: Firing Order & Distributor Rotation (Protege & 323 DOHC)

Firing Order & Distributor Rotation (MPV - V6 & 929). Scheme 10

Scheme 10: Firing Order & Distributor Rotation (MPV - V6 & 929)
Scheme 10: Firing Order & Distributor Rotation (MPV - V6 & 929)

IGNITION TIMING (EXCEPT RX7)

ApplicationManual Transmission(1) Automatic Transmission
B2200
Carbureted6 @ 8256 @ 825
Fuel-Injected6 @ 7506 @ 770
B2600i5 @ 7505 @ 770
Miata10 @ 8508 @ 850
MPV
2.6L (4-Cyl.)5 @ 7505 @ 770
3.0L (V6)11 @ 80011 @ 800
MX-6
Non-Turbo6 @ 7506 @ 750
Turbo9 @ 7509 @ 750
Protege
SOHC5 @ 7505 @ 750
DOHC10 @ 75010 @ 750
3237 @ 7507 @ 750
626
Non-Turbo6 @ 7506 @ 750
Turbo9 @ 7509 @ 750
929
SOHCN/A15 @ 650
DOHCN/A8 @ 700
(1) Automatic transmission in "P" (Park).
(1)Automatic transmission in "P" (Park).

PISTON ENGINE IGNITION TIMING

IGNITION TIMING - RX7

ApplicationLeading (Yellow)Trailing (Red)
RX75 @ 75020 @ 750
(1) (Scheme 11)

(1) ROTARY ENGINE IGNITION TIMING

Scheme 11

Scheme 11
Scheme 11

FUEL PUMP

Note. Fuel pump performance is a measurement of fuel pressure and volume availability, not regulated fuel pressure.

ApplicationPressure psi (kg/cm 2 )Min. Vol. in 30 sec. Pts. (L)
B2200 (Carbureted)
Electric Pump2.8-3.6 (.20-.25)1.1 (.66)
Mechanical Pump3.7-4.7 (.26-.33).9 (.43)
RX771-92 (5.0-6.5)2.24 (1.0)
All Others
Main Fuel Pump64-85 (4.5-6.0)1.1 (.66)
Transfer Pump (4WS)5.7 (0.4)1.0 (.57)

FUEL PUMP PERFORMANCE

ApplicationAt Idle w/ Vacuum psi (kg/cm 2 )At Idle w/o Vacuum psi (kg/cm 2 )
B2200 (PFI) & B2600i28-37 (2.0-2.6)38-46 (2.7-3.2)
Miata31-38 (2.2-2.7)38-46 (2.7-3.2)
MPV30-37 (2.1-2.6)38-46 (2.7-3.2)
MX-6 & 62627-33 (1.9-2.3)34-40 (2.4-2.8)
Protege & 32330-37 (2.1-2.6)38-46 (2.7-3.2)
RX727-33 (1.9-2.3)34-40 (2.4-2.8)
92931-38 (2.2-2.7)38-46 (2.7-3.2)

REGULATED FUEL PRESSURE

INJECTOR RESISTANCE

ApplicationOhms
All Models12-16

FUEL INJECTOR RESISTANCE

IDLE SPEED & MIXTURE

ApplicationRPM - M/T(1) RPM - A/T
B2200
Carbureted825825
Fuel-Injected (2)750770
B2600i (2)750770
Miata (2)850850
MPV
4-Cylinder (2)750770
V6 (2)800800
MX-6 (2)750750
Protege (2)750770
RX7 (3)750750
323 (2)750750
626 (2)750750
929 (V6)
SOHC (2)N/A650
DOHC (2)N/A700
(1) Automatic transmission in "P" (Park). (2) With test connector grounded. (3) Manual adjustment is NOT possible.
(1)Automatic transmission in "P" (Park).
(2)With test connector grounded.
(3)Manual adjustment is NOT possible.

IDLE SPEED SPECIFICATIONS

FAST IDLE SPEED

ApplicationRPM
B2200 (Carbureted)(1) 3000-4000
(1) Adjust with throttle lever on highest step of fast idle cam.
(1)Adjust with throttle lever on highest step of fast idle cam.

FAST IDLE SPEED

ApplicationFast Idle (1) Cam StepThrottle Bore Clearance In. (mm)
B2200 (Carbureted)2.033-.041 (.84-1.4)
(1) The highest cam step is the 1st step.
(1)The highest cam step is the 1st step.

FAST IDLE CAM ADJUSTMENT

IDLE SWITCH

ApplicationSpecification
Throttle at Idle (Closed)Continuity
Throttle off Idle (Open)No Continuity

IDLE SWITCH

THROTTLE POSITION SENSOR (TPS)

Note. On RX7, see ADJUSTMENTS article for TPS specifications.

RED Wire VoltageBLUE Wire Voltage Closed ThrottleBLUE Wire Voltage Wide Open Throttle
4.50-4.59.37-.543.58-4.23
4.60-4.69.38-.553.66-4.32
4.70-4.79.39-.563.74-4.41
4.80-4.89.40-.573.82-4.51
4.90-4.99.40-.583.90-4.60
5.00-5.09.41-.603.97-4.70
5.10-5.19.42-.614.05-4.79
5.20-5.29.43-.624.13-4.88
5.30-5.39.44-.634.21-4.98
5.40-5.49.44-.644.29-5.07
5.50.44-.664.29-5.17

TPS VOLTAGE - B2200 (PFI), B2600i, MPV (4-CYL.), MX-6 & 626

Condition (1)Continuity Between IDL & "E"
.004" (.1 mm)Yes
.024" (.6 mm)No
(1) Insert specified thickness gauge between throttle adjustment screw and stop lever.
(1)Insert specified thickness gauge between throttle adjustment screw and stop lever.

TPS CONTINUITY TEST

Condition (1)Continuity Between IDL & "E"Continuity Between POW & TL
Miata
.016" (.4 mm)YesNo
.027" (.7 mm)NoNo
Wide Open ThrottleNoYes
Protege & 323
.004" (.1 mm)YesNo
.039" (1.0 mm)NoNo
Wide Open ThrottleNoYes
(1) Insert specified thickness gauge between throttle adjustment screw and stop lever for first 2 test conditions.
(1)Insert specified thickness gauge between throttle adjustment screw and stop lever for first 2 test conditions.

TPS INSPECTION

ApplicationOhms
MPV (V6) & 929 (SOHC)
Terminals "A" & "D"3500-6500
Terminals "B" & "D"
Closed Throttle300-1000
Wide Open Throttle3500-6500
929 (DOHC)
Terminals "A" & "D"3000-6000
Terminals "B" & "D"
Closed Throttle200-600
Wide Open Throttle3300-7000

TPS RESISTANCE

Condition (1)Continuity Between "C" & "D"
MPV (V6) & 929 (SOHC)
.02" (.5 mm)Yes
.028" (.7 mm)No
929 (DOHC)
.004" (.1 mm)Yes
.012" (.3 mm)No
(1) Insert specified thickness gauge between throttle adjustment screw and stop lever.
(1)Insert specified thickness gauge between throttle adjustment screw and stop lever.

TPS ADJUSTMENT TESTS

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