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.
Diagnostic Aids
Use the Temperature vs. Resistance table to evaluate the possibility of a shifted IAT sensor. See TEMPERATURE VS. RESISTANCE table. A shifted sensor could result in a DTC P0110.
An intermittent malfunction may be caused by a fault in IAT sensor electrical circuit. Check wiring harness and components for an intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 1.8L VIBE article. If a DTC P0110 cannot be duplicated, information included in freeze frame data can be useful in determining vehicle operating conditions when DTC was first set.
| °F | °C | Resistance - Ohms |
|---|---|---|
| 176 | 80 | 315 |
| 158 | 70 | 435 |
| 140 | 60 | 480 |
| 122 | 50 | 810 |
| 113 | 45 | 940 |
| 104 | 40 | 1150 |
| 95 | 35 | 1360 |
| 86 | 30 | 1600 |
| 77 | 25 | 2000 |
| 68 | 20 | 2400 |
| 59 | 15 | 3000 |
| 50 | 10 | 3600 |
| 41 | 5 | 4600 |
| 32 | 0 | 5700 |
| 23 | -5 | 7400 |
| 14 | -10 | 9800 |
| 5 | -15 | 12700 |
| -4 | -20 | 16000 |
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.