airflow meter - Alfa Romeo Forum
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airflow meter

Can somebody tell is ecu measuring resistance or voltage thru airflow meter since my is not working...

jimybob you gave me this measurements….

pin 4&3 300/500 ohms (closed)

pin 2&4 10 ohms (closed)

should be smooth readings until it reads 200 ohms when open.

... but I m not clear how should I measure it on airflow plugs when engine is working or I should measured when plug is off the airflow...

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i think you need to disconnect it and operate it by hand.

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