Roadmaster Estate Wagon V8-350 5.7L VIN P SFI (1996)
Crankshaft Position Sensor: Description and Operation
Crankshaft Position Sensor
DESCRIPTION
The crankshaft position sensor provides the PCM with crankshaft speed and crankshaft position. The PCM utilizes this information to determine if
an engine Misfire is present. The PCM monitors the CKP sensor for momentarily drop in crankshaft speed to determine if a misfire is occurring.
When the PCM detects a misfire, a DTC P0300 will set.
The PCM also monitors the CKP sensor signal circuit for malfunctions. The PCM monitors CKP signal and the High and Low resolution signals.
The PCM calculates these signals to determine a ratio. When the PCM detects that the ratio is out of normal operating range, the PCM will set a
DTC P0335 or a DTC P0336.
