P0281
PPowertrainCylinder 7 Contribution/Balance Fault
What does this code mean?
Severity : MediumP0281 indicates a contribution or balance fault on cylinder 7. The control module analyses small changes in crankshaft speed to judge how much each cylinder contributes. Cylinder 7 is producing clearly less, or more, than the others, which often points to an injector or compression problem.
Symptoms
- Check engine light on.
- Rough idle or vibration.
- Loss of power.
- Possible exhaust smoke.
Possible causes
- Dirty, worn or leaking cylinder 7 injector.
- Damaged injector connector or wiring.
- Low compression on cylinder 7.
- Poor quality or contaminated fuel.
- Valve or head gasket problem.
Diagnosis and repair
- Check for related injector and misfire codes.
- Review per cylinder fuel corrections in live data.
- Inspect the injector 7 connector and wiring.
- Run a compression or leak down test on the cylinder.
- Replace the injector or fix the mechanical cause, then clear the code and road test.
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Code
P0281
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012