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.
1992 Lexus SC 400FACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor
THROTTLE POSITION SENSOR ADJUSTMENT
| Clearance Between Lever & Stop Screw | Ohmmeter Reading at Terminals IDL & E2 | |
|---|---|---|
| ES300 | ||
| .014" (.35 mm) | Continuity | |
| .028" (.70 mm) | No Continuity | |
| LS400 | ||
| .016" (.40 mm) | Continuity | |
| .034" (.85 mm) | No Continuity | |
| SC300 | ||
| .014" (.35 mm) | Continuity | |
| .020" (.50 mm) | No Continuity | |
| SC400 | ||
| .016" (.40 mm) | Continuity | |
| .026" (.65 mm) | No Continuity | |
Factory Service Tools
Use the Manual With the Right Hardware
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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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