Component description for the catalytic converter temperature sensor - GF07.04-P-6110T
ENGINE 642.920 in MODEL 211.020/220/620, 219.322
ENGINE 642.921 in MODEL 211.084/089/284/289
ENGINE 642.920 in MODEL 211.022 except CODE (494) USA version
ENGINE 642.920 in MODEL 211.022/222 except CODE (498) Japan version
Shown on model 211.0 up to 31.5.06
Location
The TWC temperature sensor is located on the oxidation catalytic converter above.
Task
The TWC temperature sensor detects the current exhaust gas temperature upstream of the oxidation catalytic converter and transmits an appropriate signal to the CDI control unit (N3/9).
Design
The CAT temperature sensor consists of a metal housing with a positive temperature coefficient (PTC) precision resistor and a 2-pin plug connector.
Function
The PTC precision resistor integrated in the CAT temperature sensor changes its electrical resistance according to the exhaust temperature. Electrical resistance increases as temperature increases.