P114A MINI Possible Causes
- Exhaust system leak
- Faulty pre-catalyst or post-catalyst oxygen sensor
- Pre-catalyst or post-catalyst oxygen sensor harness is open or short-circuited
- Poor electrical connection in the pre-catalyst or post-catalyst oxygen sensor circuit
- Faulty Digital Motor Electronics (DME)
How to Fix P114A MINI Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or engine service warning light soon)
P114A MINI Meaning
The diagnostic function monitors the closed-loop lambda mixture control. The Engine Control Module (ECM) sets the OBDII code when the closed-loop lambda mixture does not meet factory specifications.