Airflow Meter
- Turn ignition off. Disconnect electrical connector from airflow meter. Note airflow meter terminal identification. See Fig 1 and Fig 2.
- Using ohmmeter, measure resistance between specified terminals. See AIRFLOW METER RESISTANCE SPECIFICATIONS table. Replace airflow meter if resistance is not within specification.
- Connect voltmeter leads to proper terminals on airflow meter with electrical connector installed. Apply air into airflow meter and note voltage reading.
- While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage reading was not obtained. Remove voltmeter.
AIRFLOW METER RESISTANCE SPECIFICATIONS
| Application & Terminals | Ohms | ||
|---|---|---|---|
| 2.4L | |||
| E1-FC | |||
| Measuring Plate Fully Closed | No Continuity | ||
| Measuring Plate Other Than Closed | 0 | ||
| E2-VC | 100-300 | ||
| E2-VB | 200-400 | ||
| 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-VS | |||
| Measuring Plate Fully Closed | 20-400 | ||
| Measuring Plate Fully Opened | 20-1000 | ||
| 3.0L | |||
| E1-FC | |||
| Measuring Plate Fully Closed | No Continuity | ||
| Measuring Plate Other Than Closed | 0 | ||
| E2-VC | 200-400 | ||
| 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-VS | |||
| Measuring Plate Fully Closed | 200-600 | ||
| Measuring Plate Fully Opened | 20-1200 | ||
NOTE:
Air temperature sensor may be referred to as intake air temperature sensor.