Taurus V6-183 3.0L VIN U FI (1993)
EGR Valve Position Sensor: Description and Operation
EGR valve position sensor
The EGR Valve Position (EVP) sensor, mounted on top of the EGR valve, is a linear potentiometer that monitors the position of the EGR valve.
The operating output values for the EVP sensor are approximately 0.8 volts (EGR valve closed) to approximately 4.5 volts (EGR valve fully open). The
Powertrain Control Module (PCM) receives the output value from the EVP sensor and converts it into EGR valve position. This information is used to
optimize the air/fuel ratio, ignition timing, and EGR flow for the best possible performance under all operating conditions.
The EVP sensor will also set a fault code when it sends a signal to the PCM that is out of the normal operating range.
