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smoke on decel

963 Views 4 Replies 4 Participants Last post by  KB3MMX
i have noticed this on the freeway when i let off after accelerating hard, and i really noticed it on my dyno runs, when i let off my truck still hazes black smoke out of the exhaust, has anyone seen this or is it something to be worried about? the truck has 230k miles on it with all the mods in my sig.
thank you
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Do you let off quick? Cause if so, it takes a second for the ECM to adjust and will still be throwing fuel until all the parameters are met and the ECM stops sending fuel.
1 - 1 of 5 Posts
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