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Intake Air Temperature Sensor

Disconnect airflow sensor connector. Check intake air temperature sensor by measuring resistance between terminals No. 4 (Green/Blue wire) and No. 6 (Brown wire). See Figure . Using a hair drier, warm the intake air temperature sensor while watching ohmmeter. Resistance value should change evenly as temperature rises. Replace airflow sensor assembly if resistance is not within specification or values do not change while warming sensor.

INTAKE AIR TEMPERATURE SENSOR RESISTANCE

Temperature °F (C) Ohms
32 (0) 6,000
68 (20) 2,700
176 (80) 400
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