How To Replace the Map Position Sensor on a Jeep Cherokee XJ

The Manifold Absolute Pressure sensor is there to determine how much fuel the engine needs to run properly. You may need to replace it for many reasons here are a few.

Poor drive-ability, rough idle, surging, very rich exhaust, pinging with mid-grade fuel. Ours was experiencing rough idle and replacing the MAP sensor took care of it right away.

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