Lumina V6-191 3.1L VIN T MFI (1993)
Camshaft Position Sensor: Description and Operation
Camshaft Sensor - California Only
Cam And Crankshaft Sensor Circuit Diagram
Front Top On Engine
PURPOSE
The camshaft sensor produces a signal indicating the beginning of the intake stroke for #1 cylinder. The signal is used to determine injection
timing. Injection begins with #1 cylinder on the intake stroke and then follows the firing order. If this signal is not present, injection will not begin
and the engine will not start. If this occurs, a code 17 will set.
