Airflow Meter/Sensor Test
Turn ignition off. Unplug wiring connector from airflow meter. Note terminal identification. See Fig 1 and Fig 2 . Using an ohmmeter, measure resistance between specified terminals. Replace airflow meter if not within specification. Refer to AIRFLOW METER RESISTANCE SPECIFICATIONS table.
AIRFLOW METER RESISTANCE SPECIFICATIONS
| Measure Between Terminals: | Ohms | |
|---|---|---|
| E2-Vc | 200-400 | |
| E1-Fc | ||
| Measuring Plate Fully Closed | Infinity | |
| Measuring Fully Plate Open | 0 | |
| E2-Vs | ||
| Measuring Plate Fully Closed | 200-600 | |
| Measuring Plate 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 | |
NOTE:
Air temperature sensor is tested as part of airflow meter.