Posts Tagged: OBD2 P0108

What the P0108 Code Means and How to Fix It

P0108 Code Explained: What It Means, Common Causes, and How to Fix It Quick Summary The P0108 code indicates the engine computer is detecting a MAP sensor signal voltage higher than expected. In plain English, the PCM thinks the engine is under heavy load or wide-open throttle even when it isn’t. That false reading can cause rough idle, black smoke, poor fuel economy, hesitation, hard starting, and even catalytic converter damage if ignored. In my experience, the most common causes of a P0108 code are: • A faulty MAP sensor … Read More