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Home >> Mercury >> 1991 >> Capri Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Throttle Position Switch (1.3L)
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Throttle Position Switch (1.3L)

  1. Ensure idle speed and ignition timing are adjusted to specification. Stop engine. Disconnect negative battery cable.
    CAUTION: DO NOT tamper with throttle stop screw at throttle lever. Doing so may result in damage to the throttle body.
  2. Unplug TPS connector at throttle body. Insert appropriate feeler gauge between throttle stop screw and stop lever. Check for continuity between specified terminals on TPS connector. See ON-VEHICLE ADJUSTMENTS article and TPS CONTINUITY table.
TPS CONTINUITY

Test Condition (1) Cont. Between IDL-TL Cont. Between PSW-TL
.02" (.5 mm) Yes No
.03" (.7 mm) No No
Wide Open Throttle No Yes
(1) Insert specified feeler gauge between throttle adjustment screw and stop lever.