Airflow Meter & Sensor Test
Turn ignition off. Unplug wiring connector from airflow meter. Note terminal identification. Using an ohmmeter, measure resistance between specified terminals. Replace airflow meter if not within specification. See AIRFLOW METER RESISTANCE SPECIFICATIONS table.
AIRFLOW METER RESISTANCE SPECIFICATIONS
| Check Between Terminals: | Resistance in Ohms Should Read: | |
|---|---|---|
| E2-Vc | 200-400 | |
| E1-Fc | ||
| Measuring Plate Fully Closed | Infinity | |
| Measuring Plate Open | 0 | |
| E2-Vs | ||
| Fully Closed | 20-400 | |
| Fully Fully Open | 20-1200 | |
| E2-THA | ||
| -4°F (20°C) | 10,000-20,000 | |
| 32°F (0°C) | 4000-7000 | |
| 68°F (20°C) | 2000-3000 | |
| 104°F (40°C) | 900-1300 | |
| 140°F (60°C) | 400-700 | |