Where is the Exhaust Gas Recirculation Temperature Sensor Located?
1 Answers
Installed on the exhaust gas recirculation pipeline to measure the temperature of the recirculated exhaust gas. When the exhaust gas recirculation valve opens, the measured temperature rises, and the sensor informs the electronic control unit that the exhaust gas recirculation system is operating. Common characteristics of three types of temperature sensors: The sensor resistance uses a negative temperature coefficient thermistor, and the working principle of the sensor circuit is similar. The ECU provides a 5V power supply, with the other end of the thermistor grounded through the ECU. The ECU detects the signal voltage across the thermistor. Resistance value: As the ambient temperature increases, the resistance value decreases, and the signal voltage becomes smaller; as the ambient temperature decreases, the resistance value increases.