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Q: where is the massive airflow sensor located on my 1993 chevy lumina on 1993 Chevrolet Lumina

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also had diagnostic on 1993 chevy lumina the code was 33 which means map sensor or massive airflow sensor or both but cant locate the massive airflow
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Your vehicle has a MAP sensor only. Usually located on top of intake little retangular box(black) with a vaccum hose and a connector.
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