Airflow Meter Testing
Turn ignition off. Disconnect wiring connector from airflow meter. Using an ohmmeter, measure resistance between each terminal. If resistance values do not meet specifications shown in chart, replace airflow meter.
AIRFLOW METER RESISTANCE SPECIFICATIONS
| Terminals | Condition | Ohms | ||
|---|---|---|---|---|
| E1 - Fc | Flap Closed | (1) Infinity | ||
| " | Flap Open | Zero | ||
| 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 | ||
| E2 - Vb | N/A | 200-400 | ||
| E2 - Vc | N/A | 200-400 | ||
| E2 - Vs | Flap Closed | 20-400 | ||
| " | Flap Open | (1) 20-1000 | ||
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