A crankshaft position sensor is a sophisticated electronic component used in both petrol and diesel vehicles. It is designed to monitor the rotational speed of the crankshaft feeding the information back to the engine’s management system that controls fuel injection. Common signs that you may have a faulty crankshaft position sensor include: problems when starting the vehicle, stalling, the check engine light may come on, you may feel vibrations in the engine, and you may feel a slower result when applying the acceleration pedal. We stock a vast range of options for all kinds of makes and models. If you’re not comfortable performing the crankshaft position sensor repair yourself, it’s always best to consult a professional. Parts for All Cars have everything you need to get back on the road.