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Engine Hesitation

B

Blowntato

New member
Hey guys I'm new here, and I have a question. I have an 05 Grand Prix 3.8L V6 NA and I have been having some engine trouble, but it only happens when I drive it, shut it off to go into a store or something for like 5 minutes, come back start it up and it feels like its misfiring/hesitating. It never throws a CEL, and under WOT the problem goes away. I have taken it to my local mechanic and he has run test on it and found nothing. I have a K&N airfilter on it and thought maybe that was fouling up the mass air sensor, but I had the problem before I put the filter on. Let me know what you think.

Thanks
 


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