Why does the Check Engine light come on when crankshaft sensor is overheated?
Why does the Check Engine light come on when crankshaft sensor is overheated? Check engine light comes on if the sensor is overheated. It can come on for various reasons and sensor problem is one of crankshaft position sensor symptoms. Sometimes, it stops working due to overheating and causes the check engine light to turn on. What is the code for a bad crankshaft position sensor? A diagnostic scan tool will show a code between P0335 and P0338. The check engine light doesn't always come on, though, so you could be experiencing any of the above symptoms for some time...