Airflow Meter: Tracer
Disconnect airflow meter connector. Using an ohmmeter, check resistance across meter terminals. See Figure . Also, refer to the TRACER AIRFLOW METER RESISTANCE table.
TRACER AIRFLOW METER RESISTANCE
| Terminals | Ohms | |
|---|---|---|
| E2-Vc | 100-300 | |
| E2-Vb | 200-400 | |
| E2-THA (Air Temp. Sensor) | ||
| -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 | |
| E1-Fc | ||
| Measuring Plate Fully Closed | Infinity | |
| Measuring Plate Fully Open | 0 | |
| E2-Vs | ||
| Measuring Plate Fully Closed | 20-400 | |
| Measuring Plate Fully Open | 20-1000 | |