Will the camshaft sensor stop car from starting?

A faulty camshaft sensor can indeed prevent a car from starting. The camshaft sensor plays a crucial role in the engine's timing system, as it monitors the position of the camshaft and sends this information to the engine control unit (ECU). The ECU then uses this information to control the timing of fuel injection and ignition.

If the camshaft sensor fails or malfunctions, the ECU will not receive the necessary information to properly control the engine's timing. This can result in the engine running rough, stalling, or even failing to start at all. In some cases, a faulty camshaft sensor can also trigger the "check engine" light on the dashboard.

While the exact symptoms of a faulty camshaft sensor can vary depending on the vehicle, it is generally considered a critical component for the engine's proper functioning. If you suspect an issue with your camshaft sensor, it is recommended to have your vehicle inspected by a qualified mechanic or technician to diagnose and address the problem as soon as possible.