Viper GTS V10-488 8.0L (1998)
Camshaft Position Sensor: Description and Operation
SYSTEM OPERATION
Camshaft Position Sensor
The camshaft position sensor provides cylinder identification to the Powertrain Control Module (PCM). The sensor generates pulses. The PCM
determines crankshaft position from the camshaft position sensor and crankshaft position sensor inputs. The PCM uses the input to determine fuel
injection synchronization and to determine which ignition coil to energize.
Camshaft Sprocket
The camshaft position sensor detects when a step in the camshaft sprocket passes beneath it. When the sensor detects the step, the input voltage
from the sensor to the PCM switches from low (0.3 Volts) to high (5 Volts). As the step returns away from the sensor, the input voltage switches
back to low (0.3 Volts).