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Home >> Eagle >> 1995 >> Summit DL >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments - 1.5L >> Throttle Position Sensor (TPS) >> TPS Adjustment

TPS Adjustment

NOTE: Ensure basic idle speed is set to specification before adjusting TPS. See BASIC IDLE SPEED  under IDLE SPEED & MIXTURE. Perform all adjustments with engine at normal operating temperature, front wheels in straight-ahead position, cooling fan and all accessories off, and transmission in Park or Neutral.
  1. Disconnect TPS connector. Using external ohmmeter, measure resistance between TPS terminals No. 3 and 4. See Figure . Insert .025" (.65 mm) feeler gauge between fixed speed adjusting screw and throttle lever.
  2. Loosen TPS mounting screws and rotate TPS fully counterclockwise. Ensure there is continuity between terminals No. 3 and 4. Rotate TPS clockwise until there is no continuity and tighten screws. Install Test Harness (MB991348 ) between TPS and harness connector.
  3. Turn ignition on. Using external voltmeter, measure TPS output voltage between terminals No. 2 and 4. If voltage is not .4-1.0 volt, check harness and sensor. See SYSTEM/COMPONENT TESTS - 1.5L article.
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