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.
Intake Air Temperature (IAT) Sensor
Locate sensor on top left side of engine, near idle air by-pass valve. With sensor disconnected, measure resistance between sensor terminals. See IAT SENSOR RESISTANCE table. Replace sensor as necessary.
| Temperature | Ohms |
|---|---|
| 50°F (10°C) | 59,175 |
| 68°F (20°C) | 37,387 |
| 86°F (30°C) | 24,215 |
| 104°F (40°C) | 16,043 |
| 122°F (50°C) | 10,850 |
| 140°F (60°C) | 7,487 |
| 158°F (70°C) | 5,268 |
| 176°F (80°C) | 377 |
| 194°F (90°C) | 275 |
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:
- • 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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