DeVille V8-4.6L VIN 9 (1995)
Ignition Control
PURPOSE
The camshaft position sensor extends into the rear cylinder head. As the rear cylinder bank exhaust camshaft turns, a steel pin on its drive sprocket
passes over the magnetic camshaft position sensor. This creates an "ON-OFF-ON-OFF" signal sent to the ignition control module similar to the
crankshaft position sensors. The camshaft position sensor produces one "ON-OFF" pulse for every one revolution of the camshaft or every two
revolutions of the crankshaft. This allows the ignition control module to recognize camshaft position.
