Airflow Meter & Sensor Test
WARNING: This page is about a different car, the 1990 Toyota Land Cruiser and 1989 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Unplug wiring connector from airflow meter. Note terminal identification. See Fig 2. 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
| Measure Between Terminals: | Resistance in Ohms Should Read: | |
|---|---|---|
| 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:
On all models, air temperature sensor is tested as part of airflow meter.