|
Q.
Is the diagnosis code set?
|
|
Inspection chart for diagnosis code (Refer to ).
|
|
|
|
Q.
Is the check result normal?
|
|
Proceed to troubleshooting for improper idling (Refer to ).
|
|
|
|
- Refer to Data List Reference Table
.
- Item 5: Barometric pressure sensor
- Item 6: Manifold absolute pressure sensor
- Item 7: Engine coolant temperature sensor
- Item 8: EGR gas 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 ).
|
|
|
|
Q.
Is the check result normal?
|
|
- Check for foreign matters (water, petrol fuel, etc.) in fuel.
|
|
Q.
Is the specified fuel being used?
|
|
- Check the turbocharging pressure (Refer to GROUP 15 - On-vehicle Service - Turbocharger Supercharging Pressure Check
).
|
|
Q.
Is the check result normal?
|
|
- Check for fuel leakage and clogging.
- Check fuel filter for clogging.
|
|
Q.
Is the check result normal?
|
|
- 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. P0003 <Euro5>, Refer to Code No. P0004 <Euro5>, Refer to Code No. P0628 <Euro4>, Refer to Code No. P0629 <Euro4>).
|
|
|
|
- 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 ).
|
|
|
|
- Refer to Actuator Test Reference Table
.
- Item 15: Injector No. 1
- Item 16: Injector No. 2
- Item 17: Injector No. 3
- Item 18: Injector No. 4
|
|
Q.
Are the check results normal?
|
|
![](../../../buttons/03btn002.png)
Check the injector system of the defective cylinder.
(Refer to Code No. P0201: No. 1 Injector Circuit Malfunction ). (Refer to Code No. P0202: No. 2 Injector Circuit Malfunction ). (Refer to Code No. P0203: No. 3 Injector Circuit Malfunction ). (Refer to Code No. P0204: No. 4 Injector Circuit Malfunction ).
|
|
|
|
- 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 compression pressure (Refer to GROUP 11E - On-vehicle Service - Compression 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
<4N1>].
|
|
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 ).
|
|
|