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.
2002 Kia Optima L4-2.4LFACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor: Adjustments
Data Link Connector:
1. Connect a HI-SCAN to the data link connector.
2. If a HI-SCAN is not used, connect a digital type voltmeter between connector 1 and 3.
3. Turn the ignition switch to the ON position (do not start engine) and check that the TP Sensor output voltage is as specified. If a HI-SCAN is used, read the voltage.
Standard value 300 - 900 mV
4. If it is out of specification, loosen TP Sensor mounting screws and adjust by turning the TP Sensor.
NOTE:
1. Turning the TP Sensor clockwise increases the output voltage.
2. Tighten the screws securely after adjustment.
5. Turn the ignition switch to the OFF position.
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.