Intake Air Temperature (IAT) Sensor
WARNING: This page is about a different car, the 1996 Saab 9000. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Locate IAT sensor on intake manifold. Unplug connector from sensor. Measure resistance between sensor terminals at temperatures specified. See INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE table. Replace sensor if resistance is not as specified.
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE (1)
| Temperature - °F (°C) | Ohms | |||
|---|---|---|---|---|
| Motronic 5.2 System | ||||
| -22 (-30) | 20,000-30,000 | |||
| 14 (-10) | 8300-10,600 | |||
| 68 (20) | 2300-2700 | |||
| 104 (40) | 1000-1300 | |||
| 140 (60) | 565-670 | |||
| 176 (80) | 295-365 | |||
| 194 (90) | 240-260 | |||
| Trionic System | ||||
| -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 | |||
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