Component Tests and General Diagnostics
1. Disconnect connector from air flow sensor.
2. Measure resistance between sensor terminals 1 and 4 (outer terminals).
3. Resistance should be:
8250 - 10,560 ohms at 14°F
2280 - 2780 ohms at 68°F
750 - 910 ohms at 122°F
4. If resistance values are not within specifications, temperature sensor is defective.
Note: Air temperature sensor is integral with the air flow meter and cannot be serviced separately. If sensor is defective, air flow meter must be replaced.