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 MANUALSTOYOTA1984VAN BASE, VAN CARGO, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMECS ENGINE CONTROL SYSTEMADJUSTMENTSTHROTTLE POSITION SENSOR (TPS)
1984 Toyota Van Base, Van Cargo, Standard
Throttle Position Sensor (TPS)
1984 Toyota Van Base, Van Cargo, StandardSECTION Throttle Position Sensor (TPS)
- Loosen 2 TPS retaining screws. Insert a .028" (.70 mm) thickness gauge between throttle stop screw and throttle. With ignition off and electrical connector disconnected, connect ohmmeter between terminals IDL and TL.
- Gradually turn TPS counterclockwise until ohmmeter needle deflects. Secure TPS retaining screws. Perform resistance tests for terminals IDL - TL.
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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.