Tag: Symptoms of a Bad MAP Sensor

Symptoms of a Bad MAP Sensor and Ultimate Solution

The symptoms of a Bad MAP sensor include significantly decreased fuel mileage, and roughness/jerking during acceleration. The air-to-fuel mixtures could be both lean and rich, and the idle could be off. A MAP (Manifold Absolute Pressure) sensor is a crucial component in an engine’s electronic control system. Its primary function is to measure the intake