Airflow Meter
Visually check airflow meter body for cracks or damage. Using an ohmmeter, check resistance between airflow meter connector terminals. See Fig 1
. See AIRFLOW METER RESISTANCE specification table for resistance values.
AIRFLOW METER RESISTANCE (NON-TURBO)
| Terminal |
Ohms |
| E2 to Vs |
50-500 |
| E2 to Vref |
200-500 |
| E2 to THAa |
| -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 to Fc |
No Continuity |
AIRFLOW METER RESISTANCE (TURBO)
| Terminal |
Ohms |
| E2 to Vs |
200-600 |
| E2 to Vref |
200-400 |
| E2 to THAa |
| -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 to Fc |
No Continuity |