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 (TP) Sensor
TP sensor should input a .5-volt reference signal to PCM at closed throttle, 2.3-2.7 volts at half throttle and approximately 4.5 volts at full throttle. Voltage should change smoothly as throttle valve is opened and closed. If voltage is not correct, check TP sensor wiring circuit. See WIRING DIAGRAMS . Individual component testing of TP sensor is not available.
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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.