P2C5A
Cylinder 5 Fuel Injector B Offset Learning At Min Limit
The injector offset adaptation for fuel injector B on cylinder 5 has reached the minimum learning limit. Injector flow trends below nominal beyond compensation.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Common causes
Ordered by how often each turns out to be the cause.
- Injector partially clogged - reduced flowCommon
- Local rail pressure drift on this injectorPossible
Parts involved
- Fuel Injector B Cyl 5
- ECM
P2C5A is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.