would a bad cat cause black smoke when reving high rpms?
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Joined: Jan 2003
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From: Charlotte, NC
Re: would a bad cat cause black smoke when reving high rpms? (StockEG9)
probably not, but there is an odd chance
to check your cat get the car nice and hot and use a temp gun, the outlet temp of your cat should be 200 degrees higher then the inlet if so that means your cat is working
to check your cat get the car nice and hot and use a temp gun, the outlet temp of your cat should be 200 degrees higher then the inlet if so that means your cat is working
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