Operation-Cab/Chassis Models

OPERATION-CAB/CHASSIS MODELS





The EGR Temperature Sensor (1) is located on the EGR crossover tube (6) near the EGR valve.

The EGR temperature sensor is a negative temperature coefficient thermistor used to measure the temperature of the EGR gas flow after it exits the EGR cooler.

The ECM (Engine Control Module) supplies 5-volts to the EGR temperature signal circuit. To determine the temperature of the EGR gas flow, the ECM monitors the change in voltage caused by changes in the resistance of the sensor. The ECM uses the exhaust gas recirculation temperature value for the engine protection system, and also for engine emissions control.