P1140 BMW Possible Causes
- Faulty mass air flow
- Mass air flow harness is open or shorted
- Poor electrical connection in the mass air flow circuit
How to Fix BMW Code P1140?
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 service engine soon warning light)
P1140 BMW Meaning
The mass or volume air flow circuit range/performance problem is the generic description for BMW P1140 code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have more information about the OBDII P1140 BMW code.