- Crankshaft positioning sensor (CKP): This sensor is responsible for determining the position of the crankshaft. It is located on the engine block, near the crankshaft. The CKP uses a magnetic pickup to measure the position of a toothed wheel on the crankshaft. This information is sent to the engine control module (ECM), which uses it to time the ignition and fuel injection.
- Crank fluctuation sensor (CKF): This sensor is used to detect crankshaft vibration. It is located on the engine block, near the transmission. The CKF uses a piezoelectric crystal to sense crankshaft vibration. This information is sent to the ECM, which uses it to adjust the timing of the ignition and fuel injection.
The CKP and CKF sensors work together to ensure that the engine runs properly. If either sensor fails, it can cause the engine to run poorly or even stall.
