Intake Air Temperature (IAT) Sensor
- Turn ignition off. Locate IAT sensor on intake manifold. Unplug connector from sensor. Measure resistance between sensor terminals at temperatures specified. See appropriate IAT SENSOR RESISTANCE table. Replace sensor if resistance is not as specified.
IAT SENSOR RESISTANCE (900 SERIES EXCEPT TRIONIC)
| Temperature - °F (°C) |
Ohms |
| 4 (-20) |
15,000 |
| 32 (0) |
5800 |
| 68 (20) |
2600 |
| 86 (30) |
1700 |
| 176 (80) |
320 |
IAT SENSOR RESISTANCE (900 SERIES TRIONIC)
| Temperature - °F (°C) |
Ohms |
| -22 (-30) |
20,000-30,000 |
| 14 (-10) |
7000-11,400 |
| 68 (20) |
2100-2900 |
| 104 (40) |
1000-1300 |
| 140 (60) |
565-670 |
| 176 (80) |
295-365 |
| 194 (90) |
240-260 |
IAT SENSOR RESISTANCE (9000 SERIES TURBO)
| Temperature - °F (°C) |
Ohms |
| -22 (-30) |
20,000-30,000 |
| 14 (-10) |
8300-10,600 |
| 68 (20) |
2300-2700 |
| 104 (40) |
1000-1300 |
| 140 (60) |
560-670 |
| 176 (80) |
300-360 |