Intake Air Temperature (IAT) Sensor
IAT Sensor is located on intake manifold. The IAT contains a Blue/Black and Black wire connector. Using ohmmeter, check resistance across IAT sensor terminals. Replace IAT sensor if resistance is not within specification. See IAT SENSOR RESISTANCE SPECIFICATIONS table.
IAT SENSOR RESISTANCE SPECIFICATIONS
| Temperature °F (°C) | Ohms |
|---|---|
| -40 (-40) | 100,700 |
| 0 (-18) | 25,000 |
| 20 (-7) | 13,500 |
| 40 (4) | 7500 |
| 70 (20) | 3400 |
| 100 (38) | 1800 |
| 160 (71) | 450 |
| 210 (99) | 185 |