P2172 - High Air Flow - Vacuum Leak Detected - Instantaneous Accumulation
- Fault MAP Sensor
- MAP Sensor harness is open or shorted
- MAP Sensor circuit poor electrical connection
- Faulty Throttle Body
The Powertrain Control Module (PCM) detects that a large vacuum leak is present or that the signal voltage for both Throttle Position (TP) Sensors is stuck a 2.5 volts and calculated MAP is less than the Gas Flow Adaptation value. One trip fault will set within 5 seconds.