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.
1993 Geo Metro LSi, 2D Hatchback, AutomaticFACTORY OEM SERVICE PROCEDURE
Throttle Position (TP) Sensor
NOTE:
To identify TP sensor terminals, see Fig 1.
THROTTLE POSITION (TP) SENSOR RESISTANCE
| Application | Ohms | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Between Terminals 1 & 2 (1) | 0-5000 | ||||||||
| Between Terminals 1 & 2 (2) | Infinity | ||||||||
| Between Terminals 1 & 2 (3) | 0-5000 | ||||||||
| Between Terminals 1 & 3 (3) | 240-1140 | ||||||||
| Between Terminals 1 & 3 (4) | 3170-6600 | ||||||||
| Between Terminals 1 & 4 | 4370-8130 | ||||||||
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Factory Service Tools
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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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