Denso Crankshaft Position Sensor 949979-1300

Product Introduce

The Crankshaft Position Sensor (often abbreviated as CKP sensor) is a vital component in an internal combustion engine, responsible for monitoring the position and rotational speed of the crankshaft. This sensor plays a key role in helping the engine control module (ECM) or engine control unit (ECU) manage critical functions like fuel injection timing, ignition timing, and, in some engines, variable valve timing.

Key Functions

1. Fuel Injection Timing: The CKP sensor helps determine the exact timing for fuel injection by providing the ECM with precise crankshaft position data.
2. Ignition Timing: This timing is crucial to ensure spark plug firing happens at the optimal moment in the engine’s cycle, enhancing performance and fuel efficiency.
3. Synchronization with Camshaft: In engines with camshaft position sensors (CKP sensors), it works in conjunction to maintain the correct timing between the crankshaft and camshaft for better valve operation and timing.