Crankshaft Position Sensor, 90919-05070/90919-05050

The crankshaft position sensor monitors the rotational speed and position of the crankshaft, sending this data to the engine control unit (ECU). This information is essential for precise ignition timing and fuel injection, ensuring optimal engine performance, fuel efficiency, and emission control.

Common symptoms include difficulty starting the engine, stalling, rough idling, reduced power, misfires, or the check engine light turning on. A diagnostic scan tool can confirm fault codes such as P0335, which indicates a crankshaft position sensor circuit malfunction.

No. While both sensors provide crucial timing data to the ECU, the crankshaft position sensor tracks the crankshaft’s position and speed, and the camshaft position sensor monitors the camshaft’s position. Together, they help synchronize the timing for ignition and fuel injection.