EGR Valve Position Sensor: Description and Operation

Fig. 124 EGR System:

The EGR Position Sensor is incorporated in the EGR valve assembly. It is a variable resistor that detects EGR control valve lift. The ECU utilizes this information and other inputs to optimize EGR system operation through its control of the EGR solenoid valve.

For complete EGR system description, operation and testing information, refer to EMISSION CONTROLS.