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2002 Chevy Suburban idling rough in park and at stop lights.

I've recently put some fuel treatment in my suv but forgot to fill up afterwards and drove fuel to empty. My suv now idles rough and my check engine light came on. I've already had my plugs and wires replaced and filled up on fuel and it still does the same thing. What could the problem be???? Help please

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The computer might have set up to a bad mix from the fuel additive or could have damaged the ox sensor .remove the battery terminal for 5 min replace and see what happens , worth a shot before you spend out money

Posted on Nov 19, 2008

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