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Can't go over 15 mph with MAF sensor plugged in

  

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I have a 1999 tahoe that will not go above 15 ish mph with the MAF sensor plugged in, but will run much better with it unplugged. I have tried 3 different MAF sensors and problem persists. Fuel pressure is testing OK and no major vacuum leaks. Thoughts? Can has been sitting for a couple years. Full new tank of gas and oil changed if that matters.


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Posted by: @koyt25

I have tried 3 different MAF sensors and problem persists.

Did you test your MAF sensor before replacement? Did you use OEM sensors?

Posted by: @koyt25

Thoughts?

Perform a full diagnostic scan for codes and data.


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