Exhaust Gas Temperature Sensor (CALIFORNIA Models Only)

The exhaust gas temperature sensor, which is located near the EGR valve, detects the temperature of the exhaust gases passing through the EGR valve. The sensor which incorporates a thermistor, changes its resistance value in response to changes in the exhaust gas temperatures. As the temperature of the exhaust gases increase, the resistance of the sensor decreases. These changes of resistance are interpreted by the ECU and output voltage signals are modified accordingly.