Alero V6-3.4L VIN E (1999)
Crankshaft Position Sensor: Description and Operation
Crankshaft Position (CKP) Sensor
7X
7X Crank Shaft Position (CKP) Sensor
The crankshaft position sensor provides a signal used by the ignition control module. The ignition control module also uses the 7X crankshaft position
sensor to generate 3X reference pulses which the PCM uses to calculate RPM and crankshaft position.
24X
24X Crankshaft Position (CKP) Sensor
The 24X Crankshaft Position (CKP) Sensor (1) is used to improve idle spark control at engine speeds up to approximately 1600 RPM.