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.
Throttle Position Sensor (TPS): Testing
- Disconnect the throttle position sensor connector.
- Measure the resistance between terminal 1 (ground) and terminal 4 (sensor power).
Standard value : 3.5~6.5 kΞ©
- Measure the resistance between terminal 1 (ground) and terminal 2 (sensor output).
- Operate the throttle valve slowly from the idle position to full open position and check that the resistance changes smoothly in proportion with the throttle valve opening angle.
- If the resistance is out of specification, or fails to change smoothly, replace the throttle position sensor.
Tightening torque
TPS: 1.5~2.5 N-m (15~25 kg-cm, 1.1~1.8 lb-ft)
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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