LeSabre V6-231 3.8L VIN L SFI (1992)
Camshaft Position Sensor: Description and Operation
Cam And Crankshaft Sensors
Camshaft Sensor
The cam shaft sensor is located on the timing cover behind the water pump near the camshaft sprocket. As the camshaft sprocket turns, a permanent
magnet activates the Hall-Effect switch in the cam shaft sensor. When the Hall-effect switch is activated, it grounds the signal line to the DIS Module,
causing the cam sensor signal line applied voltage to go low. This is interpreted as a cam shaft signal. The camshaft signal occurs when piston #1 is
approximately 25 degrees After Top Dead Center on the power stroke. When the cam shaft signal is absent, a Code 41 will set.