P0312
PowertrainIgnition Misfirehigh severityCylinder 12 Misfire Detected
What P0312 Means
Misfire detected in cylinder 12.
Symptoms
- Check Engine Light
- Rough idle
Common Causes
- Worn plug #12
- Faulty coil
- Faulty injector
Diagnostic Steps
- Swap coil
- Inspect plug
- Test injector
Where to start: Diagnose cylinder 12.
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