P027E
Cold Start Fuel Injection Quantity A Lower Than Expected
During cold start the injection quantity A is below the commanded amount. Hard starting in cold conditions.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Injector cloggedCommon
Parts involved
- Fuel Injectors
- High Pressure Fuel Pump
P027E 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.