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 Hyundai Excel GL, StandardFACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor (TPS)
- Loosen throttle cable. With ignition off and TPS connector connected, connect a digital voltmeter between both terminals of TPS connector. DO NOTÂ disconnect TPS connector; backprobe through rear of connector.
- Turn ignition switch to ON position, but DO NOTÂ start engine. Check TPS voltage. If reading is not .48-.52 volt, turn TPS clockwise (increase) or counterclockwise (decrease) until correct voltage is obtained.
- After adjustment tighten TPS screw to 13.28-22.13 INCH lbs. (1.5-2.5 N.m). Turn ignition off, and disconnect digital voltmeter. Tighten throttle cable. Disconnect vehicle battery for at least 15 seconds to erase diagnostic memory. Reconnect battery. Start engine and check idle speed.
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.