Impreza RS Coupe AWD F4-2.5L DOHC (1998)
Throttle Position Sensor: Adjustments
Measuring Voltage At ECM
1. Turn the key "ON".
2. Close the throttle.
3. Using a volt meter, check the voltage between ECM terminals.
Connector & terminal:
Voltage:
(E30)15 - (E30)4
0.45 - 0.55 Volts DC
Throttle Position Sensor
4. If not correct, loosen the throttle position sensor screws and rotate sensor until the specified voltage exists.
5. Tighten throttle position sensor screws.