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.
Sub-Throttle Position (Sub-TP) Sensor
Disconnect sub-TP sensor connector. Measure resistance across specified terminals of sub-TP sensor connector. See SUB-TP SENSOR RESISTANCE table. See Figure. If resistance is not as specified, adjust sub-TP sensor. See SUB-THROTTLE POSITION (SUB-TP) SENSOR in ADJUSTMENTS article in the ENGINE PERFORMANCE section. Recheck resistance. If resistance is still not as specified, replace sub-TP sensor.
| Throttle Plate Position | Sub-TP Sensor Terminals | Ohm Reading | ||
|---|---|---|---|---|
| Throttle Fully Closed | VTA2 & E2 | 340-6300 | ||
| .012" (.35 mm) (1) | IDL2 & E2 | 500 Or Less | ||
| .020" (.50 mm) (1) | IDL2 & E2 | Infinite (Open) | ||
| Throttle Fully Open | VTA2 & E2 | 2400-11,200 | ||
| All Positions | VC & E2 | 3100-7200 | ||
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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.
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