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Engine Control System [Skyactiv-G 2.0]: Removal & Installation Mazda 3 BL рестайлинг

Testing & Diagnostics 24 illustrations ~1543 words

ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

WARNINGWhen the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

Scheme 204

Scheme 204: ECT Sensor No.1
Scheme 204: ECT Sensor No.1
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520419-S32364526322013010300000).)
  4. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-520423-S34603428342013010300000).)
  5. Remove the air cleaner assembly. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520422-S09166380872013010300000).)
  6. Disconnect the ECT sensor No.1 connector.
  7. Remove the ECT sensor No.1 using the SST. (Scheme 204): ECT Sensor No.1 And SST With Torque Specifications
  8. Install in the reverse order of removal.
  9. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-520423-S34603428342013010300000).)

Scheme 205

Scheme 205: ECT Sensor No.2
Scheme 205: ECT Sensor No.2

Scheme 206

Scheme 206
Scheme 206

Scheme 207

Scheme 207
Scheme 207

Scheme 208

Scheme 208
Scheme 208

Scheme 209

Scheme 209
Scheme 209
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520419-S32364526322013010300000).)
  4. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-520423-S34603428342013010300000).)
  5. Remove the air cleaner assembly. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520422-S09166380872013010300000).)
  6. Remove the battery tray and PCM component. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  7. Disconnect the short cord connector of ECT sensor No.2. (Scheme 205): ECT Sensor No.2 And SST With Torque Specifications
  8. Set the PCM harness protector aside. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  9. Remove the bolts from the bracket. (Scheme 206): Identifying Bracket Bolts With Torque Specifications
  10. Lift up the bracket.
  11. Disconnect the ECT sensor No.2 connector. (Scheme 207): Identifying ECT Sensor No.2 Connector
  12. Remove the ECT sensor No.2 and water pipe from the bracket. (Scheme 208): ECT Sensor No.2 And Water Pipe With Torque Specifications
  13. Remove the ECT sensor No.2 from the water pipe. (Scheme 209): ECT Sensor No.2 And Water Pipe With Torque Specifications
  14. Install in the reverse order of removal.
  15. Refill the engine coolant. (See «ENGINE COOLANT REPLACEMENT [SKYACTIV-G 2.0]»(ref-520423-S34603428342013010300000).)

MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.1 REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

CAUTIONBe careful not to hit the sensor element or allow foreign matter to get on it during sensor removal/installation. If the sensor element is hit or foreign matter gets on it, an error may occur in the sensor output signal resulting in deterioration in the engine control.

Note. Because the IAT sensor No.1 is integrated in the MAF sensor, replacing the IAT sensor No.1 includes replacement of the MAF sensor/IAT sensor No.1.

Scheme 210

Scheme 210
Scheme 210
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Disconnect the MAF sensor/IAT sensor No.1 connector.
  4. Remove the MAF sensor/IAT sensor No.1. (Scheme 210): Identifying MAF Sensor/IAT Sensor No.1
  5. Install in the reverse order of removal.

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. Because the IAT sensor No.2 is integrated in the MAP sensor, replacing the IAT sensor No.2 includes replacement of the MAP sensor/IAT sensor No.2.

Scheme 211

Scheme 211: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL/INSTALLATIO
Scheme 211: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL/INSTALLATIO
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Disconnect the MAP sensor/IAT sensor No.2 connector.
  4. Remove the MAP sensor/IAT sensor No.2. (Scheme 211): Identifying MAP Sensor/IAT Sensor No.2
  5. Install in the reverse order of removal.

Scheme 212

Scheme 212: Voltage Inspection
Scheme 212: Voltage Inspection

Scheme 213

Scheme 213
Scheme 213
  1. Connect the M-MDS to the DLC-2. (Scheme 212): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Verify that the MAP sensor output voltage (PID: MAP) is within the specification. (See «ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0]»(ref-520416-S32489034522013010300000).) (See «PCM INSPECTION [SKYACTIV-G 2.0]»(ref-520417-S31406391912013010300000).) If not as specified, replace the MAP sensor/IAT sensor No.2. (See «MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520417-S09157530642013010300000).) Specification (Scheme 213): MAP Sensor Output Voltage Graph

BAROMETRIC PRESSURE (BARO) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. Because the BARO sensor is integrated in the PCM, replacing the BARO sensor includes replacement of the PCM.

  1. Remove the PCM. (See «PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520417-S19808320362013010300000) .)

THROTTLE POSITION (TP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. The TP sensor cannot be removed as a single unit. When replacing the TP sensor, replace it together with the throttle body as a single unit.

  1. Remove the throttle body. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520422-S09166380872013010300000) .)

ACCELERATOR PEDAL POSITION (APP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. Because the APP sensor is integrated in the accelerator pedal, replacing the APP sensor includes replacement of the accelerator pedal.

  1. Remove the accelerator pedal. (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520422-S16308587892013010300000) .)

FUEL PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. The fuel pressure sensor cannot be removed as a single unit. When replacing the fuel pressure sensor, replace it together with the fuel distributor as a single unit.

  1. Remove the fuel distributor. (See «FUEL INJECTOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520421-S04311142652013010300000) .)

AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

WARNINGA hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

Scheme 214

Scheme 214
Scheme 214

Scheme 215

Scheme 215
Scheme 215
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Disconnect the A/F sensor connector.
  4. Remove the wiring harness from the wire clip. (See «ASSEMBLY OF WIRING HARNESS TO WIRE CLIP NOTE»(ref-520417-S28840169232013010300000).) (Scheme 214): A/F Sensor Wiring Harness
  5. Remove the A/F sensor using the SST. (Scheme 215): A/F Sensor And SST With Torque Specifications
  6. Install in the reverse order of removal.

Scheme 216

Scheme 216: Assembly of Wiring Harness to Wire Clip Note
Scheme 216: Assembly of Wiring Harness to Wire Clip Note
  1. Assemble the wiring harness to the wire clip. NOTE: Secure the wiring harness to the wire clip so that the band on the wiring harness is positioned to the right side of the wire clip. (Scheme 216): Securing A/F Sensor Wiring Harness To Wire Clip

Scheme 217

Scheme 217: A/F Sensor Inspection
Scheme 217: A/F Sensor Inspection

Scheme 218

Scheme 218
Scheme 218
  1. Connect the M-MDS to the DLC-2. (Scheme 217): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Warm up the engine to normal operating temperature.
  4. Access the following PIDs using the M-MDS. (See «ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0]»(ref-520416-S32489034522013010300000).) VSS (Vehicle speed) RPM (Engine speed) O2S11 (A/F sensor output current)
  5. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine speed is 3,000 rpm or more.
  6. Verify that the A/F sensor output current (PID: O2S11) is 0.25 mA or more while decelerating as shown in the figure. (Scheme 218): A/F Sensor Output Current Graph If not as specified, replace the A/F sensor. (See «AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520417-S34644827202013010300000).)

HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

WARNINGA hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

Scheme 219

Scheme 219
Scheme 219

Scheme 220

Scheme 220
Scheme 220
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Lift up the vehicle.
  4. Remove the clip from the member. (Scheme 219): Removing Clip From Member
  5. Disconnect the HO2S connector.
  6. Remove the HO2S using the SST. (Scheme 220): HO2S And SST With Torque Specifications
  7. Install in the reverse order of removal.

Scheme 221

Scheme 221: HO2S Inspection
Scheme 221: HO2S Inspection

Scheme 222

Scheme 222
Scheme 222
  1. Connect the M-MDS to the DLC-2. (Scheme 221): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Warm up the engine to normal operating temperature.
  4. Access the following PIDs using the M-MDS. (See «ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0]»(ref-520416-S32489034522013010300000).) VSS (Vehicle speed) RPM (Engine speed) O2S12 (HO2S output voltage)
  5. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine speed is 3,000 rpm or more.
  6. Verify that the HO2S output voltage (PID: O2S12) is 0.3 V or less while decelerating as shown in the figure. (Scheme 222): HO2S Output Voltage Graph If not as specified, replace the HO2S. (See «HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520417-S19972073702013010300000).)

CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

CAUTIONWhen foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing. Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.

Scheme 223

Scheme 223
Scheme 223
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Lift up the vehicle.
  4. Perform the following procedure for easier access. Remove the aerodynamic under cover No.2. (See «AERODYNAMIC UNDER COVER NO.2 REMOVAL/INSTALLATION»(ref-520448-S37186396192013010300000).) Remove the front splash shield (RH). (See «SPLASH SHIELD REMOVAL/INSTALLATION»(ref-520448-S04813808932013010300000).)
  5. Disconnect the CKP sensor connector.
  6. Remove the CKP sensor. (Scheme 223): Identifying CKP Sensor And Bolt With Torque Specifications
  7. Install in the reverse order of removal.

CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

CAUTIONWhen replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.

Scheme 224

Scheme 224: Intake CMP Sensor
Scheme 224: Intake CMP Sensor
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520419-S32364526322013010300000).)
  4. Remove the intake manifold. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520422-S09166380872013010300000).)
  5. Disconnect the intake CMP sensor connector.
  6. Remove the intake CMP sensor. (Scheme 224): Identifying Intake CMP Sensor And Bolt With Torque Specifications
  7. Install in the reverse order of removal.

Scheme 225

Scheme 225: Exhaust CMP Sensor
Scheme 225: Exhaust CMP Sensor
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520419-S32364526322013010300000).)
  4. Disconnect the exhaust CMP sensor connector.
  5. Remove the exhaust CMP sensor. (Scheme 225): Identifying Exhaust CMP Sensor And Bolt With Torque Specifications
  6. Install in the reverse order of removal.

FUEL TANK PRESSURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

CAUTIONDisconnecting/connecting the quick release connector without cleaning it may cause damage to the evaporative pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting using a cloth or soft brush, and make sure that it is free of foreign material.

Note. The fuel tank pressure sensor cannot be removed as a single unit. When replacing the fuel tank pressure sensor, replace it together with the evaporative hose component as a single unit.

Scheme 226

Scheme 226
Scheme 226

Scheme 227

Scheme 227
Scheme 227
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520427-S28538867222013010300000).)
  3. Disconnect the fuel tank pressure sensor connector.
  4. Remove the clip from the fuel tank pressure sensor bracket. (Scheme 226): Identifying Clip And Fuel Tank Pressure Sensor Bracket
  5. Disconnect the quick release connectors and remove the evaporative hose component. (See «QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520424-S25975134472013010300000).) (Scheme 227): Evaporative Hose Component
  6. Install in the reverse order of removal.

ION SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]

Note. Because the ion sensor is integrated in the ignition coil, replacing the ion sensor includes replacement of the ignition coil/ion sensor.

  1. Remove the ignition coil/ion sensor. (See «IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0]»(ref-520425-S22677863952013010300000) .)

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