According to RepairPal, the average cost for an Engine Control Module (ECM) replacement ranges between $1,037 and $1,113, but the exact cost may vary based on your car's make and model.

Symptoms of a bad or failing camshaft position sensor. The camshaft position sensor gathers information about the vehicle’s camshaft speed and sends it to the vehicle’s engine control module ...

Just as important, ECT sensors can also be used by the engine control module to gauge a vehicle's performance and initiate the use of cooling fans as needed. Ensuring your coolant temperature ...