MAP Sensor Replacement Cost
Replacing a MAP sensor without a proper diagnosis may end in a failed repair attempt. Before replacing the sensor, a quality technician will first verify that the engine has normal vacuum readings, that there is no oil getting into the MAP sensor, and that the vacuum line or connection is in good condition.
When a MAP sensor fails, the vehicle may exhibit engine performance problems such as poor power, rough idle, poor fuel economy, and excessive tail pipe smoke. The Check Engine Light may illuminate and codes may set for a defective MAP sensor.