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The mass air flow sensor is located in the throttle body housing on the 3800 engine. There should be 4 screws that hold it down to the housing. Once they screws are removed, the sensor lifts off of the throttle body.

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โˆ™ 2008-03-19 02:07:54
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Q: Where is the air sensor on a 91 Buick Regal 38L located?
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