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2006 GMC Envoy where is the mass air sensor

My daughter has a no start problem after the engine has warmed up. I know that in the past if the mass air sensor was bad that the ECM can become confused and not lean out the mixturewhen the engine warms up. Is this a possible issue with the 2006 Envoy?

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Yes, good suspect.. but code check it for soft codes you may not be seeing a check engine light..also related are O2 sensor/computer itself/TPS/ oil pressure switch/ resistance to fuel pump after warm(failing) and some others.........good luck

Posted on Dec 08, 2008

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