Diagnostic Aids
When replacing IAT sensor, refer to INTAKE AIR TEMP SENSOR RESISTANCE table to evaluate the possibility of a "shifted" sensor. A "shifted" sensor could result in poor driveability complaints. For IAT sensor specification, refer to I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.
INTAKE AIR TEMP SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 210 (99) | 190 |
| 160 (71) | 400 |
| 100 (38) | 1250 |
| 70 (21) | 2350 |
| 40 (4) | 4780 |
| 20 (-7) | 8100 |
| 0 (-18) | 14,650 |