How to Measure the Camshaft Position Sensor?

[VanKaleb]

The camshaft position sensor is one of the most critical sensors in the engine electronic control system. Its function is to provide the vehicle's ECU with signals to confirm the piston position, thereby determining the engine's ignition timing and sequential fuel injection. The specific measurement methods are as follows: 1. The output signal tooth surface displays a low state, while the gap displays a high state. 2. The camshaft sensor operates based on the principle of the crankshaft sensor. 3. The camshaft sensor gear disc may also have fundamental differences. Using a dedicated masking template, emergency operation can be performed after the crankshaft sensor fails. 4. The resolution of the camshaft sensor signal is too inaccurate, making it impossible to replace the crankshaft sensor during normal operation.