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TPS Inspection

  1. Disconnect TPS connector. Move throttle lever to idle position by using hand vacuum pump and applying 15 in. Hg vacuum to throttle opener. Using ohmmeter, check continuity between upper and lower terminals of TPS connector with proper shim thickness gauge inserted between throttle valve lever and stop screw. See Figure . See THROTTLE POSITION SENSOR (TPS) RESISTANCE  table.
  2. If TPS inspection results between terminals "C" and "D" are not within table specifications, adjust TPS. If any of TPS inspection results between terminals "C" and "D", "A" and "D" and "B" and "D" cannot be adjusted to be within specifications, replace TPS.
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