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Q.
Is the diagnosis code set?
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Inspection chart for diagnosis code (Refer to ).
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- Check injector for operating sound (Refer to
).
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Q.
Is operating sound audible?
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Check the injector system of the defective cylinder. Check code No. P0261: No. 1 injector circuit low input (Refer to ). Check code No. P0262: No. 1 injector circuit high input (Refer to ). Check code No. P0264: No. 2 injector circuit low input (Refer to ). Check code No. P0265: No. 2 injector circuit high input (Refer to ). Check code No. P0267: No. 3 injector circuit low input (Refer to ). Check code No. P0268: No. 3 injector circuit high input (Refer to ). Check code No. P0270: No. 4 injector circuit low input (Refer to ). Check code No. P0271: No. 4 injector circuit high input (Refer to ).
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- Refer to Data List Reference Table
.
- Item 5: Intake air temperature sensor
- Item 6: Engine coolant temperature sensor
- Item 8: Manifold absolute pressure sensor
- Item 10: Air flow sensor
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Q.
Are the check results normal?
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Perform the diagnosis code classified check procedure for the sensor that has shown an abnormal data value (Refer to Inspection Chart for Diagnosis Code ).
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- Check ignition timing (Refer to GROUP 11A - On-vehicle Service - Ignition Timing Check
).
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Q.
Is the check result normal?
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Check Inspection Procedure - ignition timing deviation (Refer to ).
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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Q.
Is the check result normal?
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Clean throttle body (throttle valve portion) (Refer to ).
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- Refer to Data List Reference Table
.
- Item AC: Oxygen sensor (front)
- Item AD: Oxygen sensor (rear) <EURO4>
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Q.
Are the check results normal?
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Perform the diagnosis code classified check procedure for the sensor that has shown an abnormal data value (Refer to Inspection Chart for Diagnosis Code ).
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- Purge control solenoid valve connector check.
- Check purge control solenoid valve itself (Refer to GROUP 17- Emission Control <MPI> - Evaporative Emission Control System - Purge Control Solenoid Valve Check
).
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Q.
Is the check result normal?
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Repair or replace the connector, or replace the purge control solenoid valve.
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- Fuel pressure measurement (Refer to
).
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Q.
Is the check result normal?
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- Check positive crankcase ventilation valve itself (Refer to GROUP 17 - Emission Control - Crankcase Emission Control System - Positive Crankcase Ventilation Valve Check
).
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Q.
Is the check result normal?
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Replace the positive crankcase ventilation valve.
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- Check spark plug (Refer to GROUP 16 - Ignition System - On-vehicle service - Spark Plug Check and Cleaning
).
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Q.
Is the check result normal?
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- Check the compression pressure (Refer to GROUP 11A - On-vehicle Service - Compression Pressure Check
).
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Q.
Is the check result normal?
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- Check each injector for spray condition (Refer to
).
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Q.
Is the check result normal?
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- After the replacing the catalytic converter, re-check the trouble symptoms.
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Q.
Does the trouble symptom persist?
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