The MAP signal is above the expected range. The driver may notice rich running, rough idle or poor consumption.
Likely causes, most common first
- Vacuum hose off or split
- Short to voltage in the wiring
- Faulty MAP sensor
- Open ground wire
Parts usually involved
- MAP sensor
- Vacuum hose
- Sensor connector
Test before you replace
Check the hose for vacuum, then test the sensor signal and ground wire.
General guidance for generic OBD2 codes. Always follow the maker's procedure for the car in front of you.