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- Check battery (Refer to GROUP 54A - Battery - On-vehicle Service - Battery Test ).
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Q.
Is the check result normal?
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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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- 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
- Item BB: Barometric pressure 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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Q.
Is the check result normal?
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Clean throttle body (throttle valve portion) (Refer to ).
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OK: Operating sound of fuel pump can be heard.
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Q.
Is the check result normal?
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Check Inspection Procedure - fuel pump system (Refer to ).
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Q.
Is the check result normal?
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- Check injector for operating sound at engine cranking (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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Q.
Is the check result normal?
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- Remove the spark plug and install it to the ignition coil.
- Connect the ignition coil connector.
- Disconnect all injector connectors.
- At the engine start, check each spark plug produces a spark.
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Q.
Is the check result normal?
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Check Inspection Procedure - ignition circuit system (Refer to ).
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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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- Fuel pressure measurement (Refer to ).
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Q.
Is the check result normal?
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- Check the compression pressure (Refer to GROUP 11C - On-vehicle Service - Compression Pressure Check ).
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Q.
Is the check result normal?
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- After replacing the engine-ECU, re-check the trouble symptoms.
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Q.
Does the trouble symptom persist?
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Check for foreign matters (water, kerosene, etc.) in fuel and replace if necessary.
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