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.
Component Inspection
- Check TPS2 Performance
- IG KEY "OFF".
- Warm up the engine to normal operating temperature.
- Compare to "Current Data"
and Actual Data about throttle Position Sensor with GDS.
Courtesy of KIA MOTORS AMERICA, INC.
The TPS1 and TPS2 output values are inversely proportional to each other.
The output value of the TPS1 is proportional to the engine load. (Approx. 0V → 5V)
The output value of the TPS2 is inversely proportional to the engine load. (Approx. 5V → 0V)
- Confirm Part Inspection
- Does the TPS operate properly? (Check variation)
YES
- Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known-good Injector and check for proper operation. If the problem is corrected, replace Injector and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Does the TPS operate properly? (Check variation)
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.