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.
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HOMESERVICE MANUALSPLYMOUTH1989COLT DL, 1.5 X, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTSIDLE SPEEDIDLE SWITCH (FUEL INJECTED ENGINES)RAIDER 3.0L
1989 Plymouth Colt DL, 1.5 X, Standard
Raider 3.0L
1989 Plymouth Colt DL, 1.5 X, StandardSECTION Raider 3.0L
- Loosen tension in throttle cable. Disconnect TPS connector. Connect a DVOM between Black/Yellow and Green/Black wires on TPS side of harness connector.
- Insert a .025" (.65 mm) feeler gauge between throttle valve adjustment screw and throttle lever. Loosen TPS adjustment screws. Turn TPS fully clockwise.
- DVOM should read continuity. Slowly turn TPS counterclockwise until DVOM reads no continuity. Tighten TPS adjustment screws. Connect TPS harness connector. Remove feeler gauge. When procedure is completed, refer to THROTTLE POSITION SENSOR (TPS) ADJUSTMENT in this article.
RENDER: 1.0x
NO RELATED
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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.