Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1994 Mercury Capri Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Throttle Position (TP) Sensor/Switch
- 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 throttle body.
- Unplug Throttle Position (TP) switch connector at throttle body. Insert 0.028" in. (0.7 mm) feeler gauge between throttle stop screw and stop lever. Check for continuity between terminals "B" and "D" on TP switch connector. See Fig 1 .
- To adjust, loosen TP switch attaching screws. Insert a 0.020" (0.5 mm) feeler gauge between throttle stop screw and stop lever. Rotate TP switch until continuity exists. Insert a 0.028" (0.7 mm) feeler gauge between stop screw and stop lever. Continuity should not exist. Repeat adjustment as necessary.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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