Mirage & Summit
- Disconnect TP sensor connector. Using external ohmmeter, measure resistance between TP sensor terminals No. 3 and 4. See Figure . Insert .025" (.65 mm) feeler gauge between fixed speed adjusting screw and throttle lever.
- Loosen TP sensor mounting screws and rotate TP sensor fully counterclockwise. Ensure there is continuity between terminals No. 3 and 4. Rotate TP sensor clockwise until there is no continuity and tighten screws. Install Test Harness (MB991348 ) between TP sensor and harness connector.
- Turn ignition on. Using external voltmeter, measure TP sensor output voltage between terminals No. 2 and 4. If voltage is not .4-1.0 volt, check harness and sensor. See SYSTEM/COMPONENT TESTS - 1.8L 4-CYL article.