Airflow Meter
Turn ignition off. Disconnect wiring connector from airflow meter. Using an ohmmeter, measure resistance between each terminal. See Fig 1. If resistance values do not meet specifications shown in table, replace airflow meter.
AIRFLOW METER RESISTANCE SPECIFICATIONS
| Terminals | Condition | Ohms |
|---|---|---|
| E1 - Fc | Flap Closed | Infinity |
| E1 - Fc | Other Than Closed | 0 |
| E2 - Vs | Flap Closed | 200-600 |
| E2 - Vs | Flap Open | 200-1200 |
| E2 - Vs | N/A | 200-600 |
| E2 - Vc | N/A | 200-400 |
| E2 - THA | -4°F (-20°C) | 10,000-20,000 |
| E2 - THA | 32°F (0°C) | 4000-7000 |
| E2 - THA | 68°F (20°C) | 2000-3000 |
| E2 - THA | 104°F (40°C) | 900-1300 |
| E2 - THA | 140°F (60°C) | 400-700 |
| E1 - Fc | N/A | Infinity |