P2178: what does this code mean?
Mixture too rich off idle (bank 1)
Parts to check, to be confirmed by diagnosis
- Oxygen sensorSearch for my vehicle
- Fuel injectorSearch for my vehicle
- Mass air flow sensorSearch for my vehicle
- Fuel pressure regulatorSearch for my vehicle
Bank 1: the side of the engine with cylinder 1. An inline engine has only one bank.
A code points to a circuit or a function, not a part number: confirm by diagnosis before ordering.