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.
IAT Sensor
- Remove MAF and IAT sensor, see MAF AND IAT SENSOR REMOVAL AND INSTALLATION .
- Check sensor O-ring (1) for damage and deterioration. Replace if necessary.
- Measure resistance between sensor terminals "1" and "2" while blowing hot air to temperature sensing part (2) of MAF and IAT sensor (3) using hot air drier (4).
If faulty condition is found, replace MAF and IAT sensor, see MAF AND IAT SENSOR REMOVAL AND INSTALLATION .
Intake air temperature sensor resistance
-20°C (-4°F): 13.6 - 18.4 kΩ
20°C (68°F): 2.21 - 2.69 kΩ
60°C (140°F): 0.439 - 0.667 kΩ
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.