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Intake Air Temp (IAT) Temperature/Resistance Chart
Below you'll find the temperature to resistance relationship of the intake air temperature (IAT) sensor.
| Temperature / Resistance | ||
|---|---|---|
| °F | °C | Ohms (Ω) |
| 302 °F | 150 °C | 47 Ω |
| 284 °F | 140°C | 60 Ω |
| 266 °F | 130 °C | 77 Ω |
| 248 °F | 120 °C | 100 Ω |
| 230 °F | 110 °C | 132 Ω |
| 212 °F | 100 °C | 177 Ω |
| 194 °F | 90 °C | 241 Ω |
| 176 °F | 80 °C | 332 Ω |
| 158 °F | 70 °C | 467 Ω |
| 140 °F | 60 °C | 667 Ω |
| 122 °F | 50 °C | 973 Ω |
| 113 °F | 45 °C | 1,118 Ω |
| 104 °F | 40 °C | 1,459 Ω |
| 95 °F | 35 °C | 1,802 Ω |
| 86 °F | 30 °C | 2,238 Ω |
| 77 °F | 25 °C | 2,796 Ω |
| 68 °F | 20 °C | 3,520 Ω |
| 59 °F | 15 °C | 4,450 Ω |
| 50 °F | 10 °C | 5,670 Ω |
| 41 °F | 5 °C | 7,280 Ω |
| 32 °F | 0 °C | 9,420 Ω |
| 23 °F | -5 °C | 12,300 Ω |
| 14 °F | -10 °C | 16,180 Ω |
| 5 °F | -15 °C | 21,450 Ω |
| -4 °F | -20 °C | 28,680 Ω |
| -22 °F | -30 °C | 52,700 Ω |
| -40 °F | -40 °C | 100,700 Ω |
IAT Sensor Test Summary
Testing the intake air temperature (IAT) sensor isn't hard to do. Hopefully this article was able to help you to troubleshoot the IAT sensor and/or diagnostic trouble codes P0112 or P0113.
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