Rich. Intermittent Fault

Rich. Intermittent fault

Checking the connectors and components




- Ignition off.
Check the air cleaner (ACL) and intake system for blockage according to intake system/leak test Intake System/Leak Test.
Check for too high fuel pressure according to Measuring fuel pressure EMS 2000 Measuring Fuel Pressure EMS 2000.
Check the injectors for leakage according to Checking the injectors Testing and Inspection.
Check that the engine oil level is not too high and that it is not contaminated with fuel.
Check the front heated oxygen sensor (HO2S) and control module connectors. Check for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
Remedy as necessary.

Other information:
- To access the control module, see Engine control module (ECM), replacing Replacing Engine Control Module (ECM)
- To replace the front heated oxygen sensor (HO2S), see Replace the front heated oxygen sensor (HO2S) Replace The Front Heated Oxygen Sensor (HO2S).









Select "Continue" when the fault has been remedied.

Continue - Resetting the adaptation

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Resetting the adaptation

Note! It is important that the fuel trim is reset after this diagnostic trouble code (DTC) is remedied. If this is not done there may be driveability problems, even though the fault is no longer present.




- Ignition on.




- Click on the VCT2000 symbol to reset the fuel trim

Select "Continue" when the fuel trim is reset.

Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking the connectors and components

FAULT FOUND - DONE

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