Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P030092

Condition
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects misfires in more than one cylinder which could affect emissions. The diagnostic trouble code (DTC) can be diagnosed when the engine is running.
This diagnostic trouble code (DTC) is stored together with other diagnostic trouble codes (DTCs) which indicate which cylinders are misfiring.

Substitute value
- Three-way catalytic converter (TWC) diagnosis shut off
- Leak diagnostic shut off
- Rear heated oxygen sensor control shut off
- Fuel trim switched off.

Possible source
- Low fuel level
- Engine does not reach normal operating temperature between several cold starts
- Water in the spark plug wells
- Damaged spark plug
- Contaminated or incorrect fuel
- Poor fuel quality (summer fuel in winter).
- Air leakage
- Blocked crankcase ventilation.
- Damaged VVT-unit.
- Blocked / leaking injector
- Faulty fuel pressure
- Uneven compression

Fault symptom[s]
- Starting/Engine hard to start/cranks slowly/Unsure when/at all times
- Idling/Uneven idle
- Driving/Poor performance/lacks power
- Driving/Hesitates/surges/Unsure when/at all times
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication