MAP SENSOR CIRCUIT
Symptoms of a Bad MAP Sensor, and How to Test One
Sep 13, 2018P0109: MAP sensor circuit, intermittent failure. Other related codes include P0068 and P0069. You can find a more detailed description of these codes in your vehicle repair manual or by searching on-line. Carefully read the description of the code you've found and what the potential fault resulted from this code.Reviews: 3Author: Dan Ferrell
Part 1 -How To Test the Manifold Absolute Pressure (MAP
If it's a pre-1995 vehicle with OBD I and you have a MAP sensor problem, the check engine light will be lit by the following diagnostic trouble code: 33 (Manifold Absolute Pressure Sensor Circuit High Signal) or 34 (Manifold Absolute Pressure Sensor Circuit Low Signal).
7 Symptoms of a Broken MAP Sensor - liveabout
Depending on the age of your vehicle, MAP sensor diagnostic trouble codes (DTC) may range from simple circuit, or sensor faults, to correlation, or range faults. A dead MAP sensor won’t read anything, while a failing MAP sensor might give the ECM data that makes no sense, such as low engine vacuum when the throttle position sensor (TPS) and