Aerostar 2WD V6-245 4.0L (1990)
Crankshaft Position Sensor: Description and Operation
Crankshaft Timing Sensor
The crankshaft timing sensor is a variable reluctance type sensor. It is triggered by a 35 tooth trigger wheel tooth configuration machined into the rear of
the crankshaft dampener. The signal generated by this sensor is called a Variable Reluctance Sensor (VRS) signal. The VRS signal provides the base
timing and rpm information to the EDIS module. Base timing is set at 10° and is not adjustable.
