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      04-01-2011, 09:15 AM   #34
First Lieutenant

Drives: BMW F80 (2015 M3)
Join Date: Jul 2010
Location: Toronto

iTrader: (4)

umm okay interesting debate... anyone has DIY anything to cover the afe intake to avoid suckin up the hot air to the engine?

Originally Posted by Delta0311 View Post
Yeah you are right.. Rich is too much fuel and not enough air, lean is too much air not enough fuel. In case of the AFE CAI the typical error code was engine running rich. I had this issue as well as some other AFE CAI users, I stopped getting the code as soon as I went back to my modified stock air box. I'm guessing (and it's only my guess) the fact that the AFE CAI is pulling in too much hot air might have been the cause of the code.