Seville V8-300 4.9L (1991)
Throttle Position Sensor: Adjustments
With the engine running, select PCM/ECM override ES03, and press the cooler button . select PCM/ECM data ED01, and if it reads -1.0° to +1.0° adjust
the ISC solenoid. If the parameter reads -10.0° to -1.1° or +1.1° to 90.0° adjust the TPS as follows:
1.
Using a torx driver T-25, loosen the TPS screws just enough to permit the sensor to be rotated.
2.
Open the throttle and allow the throttle lever to snap shut against the minimum air screw.
3.
Adjust the TPS so the parameter display is -.5° to +.5°.
4.
Tighten the TPS mounting screws with the sensor in the adjusted position.
5.
Recheck the parameter to be sure the TPS parameter is -.5° to +.5°.
