new exaust but idles rough
#1
xjay215x
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Join Date: Apr 2004
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new exaust but idles rough
I just had replaced my my pipe from my cat to the muffler from 2" to 2 1/2" and put a muffler on with a 3" tip.Now im having a rough idle.The only thing ive done was a short ram intake.Theres no vacume leaks,the plugs are good and tomarrow im gonna check if its running rich or lean.Does anyone have any idea why this would happen all of a sudden?
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I had the same problem when I installed my Greddy Evo II. It turns out that the metal tab from the muffler that goes into the hangar was rubbing on the metal tab holding in the hangar. Check that out.
#6
xjay215x
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no,it was just a straight pipe from the cat back.The guy who did it only clamped the piping to the cat.Should it be welded?It does have an exaust leak now.