P027F
Cold Start Fuel Injection Quantity A Higher Than Expected
During cold start injection quantity A is above commanded — over-fueling, possible flooding.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Injector leakingCommon
Parts involved
- Fuel Injectors
P027F 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.