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Mass Airflow Sensor

MASS AIRFLOW SENSOR VOLTAGE (1)

Application Volts
ECM Terminal No. 5 & Ground (2)
Engine Off 0.0-0.3
At Idle 0.8-1.2
ECM Terminal No. 20 & Ground (2)
Engine Off Zero
At Idle Zero
(1) For further testing, see TESTS W/CODES article.
(2) Connect DVOM between indicated ECM terminal and ground.
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