Exhaust Gas Recirculation Temperature (EGRT) Sensor - All Others

WARNING: This page is about a different car, the 2020 Ford F-550 Super Duty, 2020 Ford F-450 Super Duty, 2020 Ford F-350 Super Duty, 2020 Ford F-250 Super Duty, and 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

The EGRT sensor is a thermistor type sensor. The electrical resistance of the sensor increases as the temperature decreases, and the resistance decreases as the temperature increases. The varying resistance changes the voltage drop across the sensor terminals and provides electrical voltage to the PCM corresponding to temperature. The EGRT sensor is an input to the PCM.

The EGRT sensor is used to determine if the EGR cooler is operating correctly.

For F-Series Super Duty wide frame vehicles, the EGRT bank 1, sensor 1 (EGRT11) monitors the exhaust gas temperature before the EGR cooler and the EGRT bank 1, sensor 2 (EGRT12) monitors the exhaust gas temperature after the EGR cooler.

For all others, the EGRT12 sensor monitors the exhaust gas temperature after the EGR cooler.

Courtesy of FORD MOTOR CO.