P0108 OBD Trouble Code

Manifold Absolute Pressure/Barometric Pressure Circuit High

MAP Sensor Circuit High Input Conditions

Engine speed from 400-1500 rpm, TP sensor input less than 1.0v, then the test started and the PCM detected a MAP sensor input of over 4.6v at startup, or over 4.6v with the engine running (conditions met for 1.76 seconds).

Barometric Sensor High Conditions

Engine running and the PCM detected a BARO sensor operating range of more than 5.0v

MAP Sensor Circuit High Input Conditions

Engine running in closed loop, engine speed steady, then the PCM detected a low MAP input that indicated that the manifold absolute pressure was 130 kPa or more, condition met for at least 500 ms.

Manifold absolute pressure (MAP) sensor - voltage high

Wiring, MAP sensor, ECM