Exhaust Gas Temperature Sensor (EGTS) #1 for WGT is installed on exhaust manifold and senses the termperature of exhaust gas flowing into the WGT.

Exhaust Gas Temperature Sensor (EGTS) #2 for DPF is installed on Diesel Particulate Filter (DPF) assembly and senses the temperature of exhaust gas flowing into the DPF.

When pre-determined engine condition is set, ECM burns soot gathered in DPF with exhaust gas. At this time, the exhaust gas temperature is an important factor of engine condition.