Air Temperature Sensor
- With ignition "OFF", unplug electrical connector at air flow meter. Connect an ohmmeter between terminals E2 and "THA". Measure and record air temperature.
- Ohmmeter readings should be as specified. See Temperature/Resistance Relationship charts. If not, check insulation resistance with ohmmeter between terminal "THA" or terminal and ground. Use air flow meter as ground.
- Infinity ohmmeter reading should be obtained. If values are not as specified, replace electrical harness or air flow meter assembly, as required.
TEMPERATURE/RESISTANCE RELATIONSHIP
| Temperature °F(°C) | Ohms |
|---|---|
| 32 (0) | 4000-7000 |
| 68 (20) | 2000-3000 |
| 104 (40) | 9000-13,000 |