D21 Hardbody XE 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
EGR Temperature Sensor: Description and Operation
COMPONENT DESCRIPTION
The EGR temperature sensor detects temperature changes in the EGR passage way. When the EGR valve opens, hot exhaust gases flow and the
temperature in the passageway changes. The EGR temperature sensor is a thermistor that modifies a voltage signal sent from the ECM. This modified
signal then returns to the ECM as an input signal. As the temperature increases, EGR temperature sensor resistance decreases.
This sensor is not used to control the engine system. It is used only for the on board diagnosis.
<Reference Data>
EGR temperature °C (°F) / Voltage* (V) / Resistance (M Ohms)
0 (32) / 4.81 / 7.9 - 9.7
50 (122) / 2.82 / 0.57 - 0.70
100 (212) / 0.8 / 0.08 - 0.10
*These data are reference values and measured between ECM terminal (62) (EGR temperature sensor) and ECM terminal (43) (ECCS ground).