Passat Wagon V6-2792cc 2.8L DOHC (1994)
Camshaft Position Sensor: Description and Operation
PURPOSE
The Camshaft Position Sensor signal is used (in conjunction with the engine reference signal) to identify # 1 cylinder for sequential injection and
knock control.
LOCATION
A hall sensor is located in the cylinder head next to the cam drive sprocket for cylinders # 1,# 3, and # 5.
A shutter wheel is mounted to the cam drive sprocket for cylinders # 1,# 3, and # 5
OPERATION
A voltage signal is generated when the shutter wheel opening passes the hall sensor. Since the shutter turns at camshaft speed, one signal is
generated for every two crankshaft revolutions.
A fault code is stored if the Camshaft Position Sensor malfunctions. The vehicle will start, but run in "safe" mode (no sequential injection,
retarded timing).
