|
Q.
Is the diagnosis code set?
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Inspection chart for diagnosis code (Refer to ).
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|
|
|
Q.
Is the check result normal?
|
|
Proceed to troubleshooting for improper idling (Refer to ).
|
|
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|
- Refer to Data List Reference Table
.
- Item 5: Barometric pressure sensor
- Item 6: Manifold absolute pressure sensor
- Item 7: Engine coolant temperature sensor
- Item 9: Accelerator pedal position sensor (main)
- Item 10: Accelerator pedal position sensor (sub)
- Item 16: EGR valve position sensor
- Item 21: Fuel temperature sensor
- Item 43: Intake air temperature sensor
- Item 45: Throttle position sensor
|
|
Q.
Are the check results normal?
|
|
Perform the diagnosis code classified check procedure for the sensor that has shown an abnormal data value (Refer to Inspection Chart for Diagnosis Code ).
|
|
|
|
- Check injector identification code (Refer to GROUP 00 - Precautions before Service - Injector Identification Code Registration Procedure
).
|
|
Q.
Is the check result normal?
|
|
Register the injector ID.
|
|
|
|
- Carry out the supply pump correction learning (Refer to GROUP 00 - Precautions before Service - Supply Pump Correction Learning Procedure
).
|
|
Q.
Does the trouble symptom persist?
|
|
- Carry out the small injection quantity learning procedure (Refer to GROUP 00 - Precautions before Service - Small Injection Quantity Learning Procedure
).
|
|
Q.
Does the trouble symptom persist?
|
|
- Check for foreign matters (water, petrol fuel, etc.) in fuel.
|
|
Q.
Is the specified fuel being used?
|
|
Q.
Are the oil volume and viscosity normal?
|
|
Replenish or change engine oil.
|
|
|
|
- Check glow system (Refer to Inspection Procedure 22
).
|
|
Q.
Is the check result normal?
|
|
Repair or replace the failed item.
|
|
|
|
- Check the exhaust gas recirculation valve itself [Refer to GROUP 17 - Emission Control <Diesel> - Exhaust Gas Recirculation (EGR) System - Exhaust gas recirculation valve (DC Motor) Check
<4D5>].
|
|
Q.
Is the check result normal?
|
|
Replace the exhaust gas recirculation valve.
|
|
|
|
- Refer to Actuator Test Reference Table
.
- Item 19: Suction control valve
|
|
Q.
Is the check result normal?
|
|
Check suction control valve system (Refer to Code No. P0628 , Refer to Code No. P0629 ).
|
|
|
|
- Refer to Data List Reference Table
.
- Item 63: Rail pressure sensor
- Item 64: Rail pressure target
|
|
Q.
Are the check results normal?
|
|
- After replacing the common-rail assembly, re-check the trouble symptoms.
|
|
Q.
Does the trouble symptom persist?
|
|
Q.
Does the trouble symptom persist?
|
|
Replace the supply pump assembly.
|
|
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
|
|
|
|
- Check compression pressure (Refer to GROUP 11C - On-vehicle Service - Compression Pressure Check
).
|
|
Q.
Is the check result normal?
|
|
- Injector connector check.
- Check injector itself (Refer to
).
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or replace the injector at the failed cylinder.
|
|
|
|
- Check the turbocharging pressure (Refer to GROUP 15 - On-vehicle Service - Turbocharger Supercharging Pressure Check
).
|
|
Q.
Is the check result normal?
|
|
- Exhaust gas recirculation valve connector check.
- Check exhaust gas recirculation valve itself [Refer to GROUP 17 - Emission Control <Diesel> - Exhaust Gas Recirculation (EGR) System - Exhaust gas recirculation valve (DC Motor) Check
<4D5>].
|
|
Q.
Is the check result normal?
|
|
Repair or replace the connector, or replace the exhaust gas recirculation valve.
|
|
|
|
Q.
Does the trouble symptom persist?
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
|
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|