2015 High Country Duramax
Joined
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19,588 Posts
I would pitch a fit at the "mechanic". Taking hours to only tell you that is pathetic.
Get the code read and see what it actually says. A CEL means nothing unless you get the code. That can help narrow it down as to what to start looking for.
My guess is that if it's a MAF code then you either have a wiring issue (not likely if it was working before the cai), a bad sensor (again not likely if it was working beforehand), or a leak after the MAF, which is highly likely.
If it's not MAF related, then you need to look elsewhere depend on what the code is.
Get the code read and see what it actually says. A CEL means nothing unless you get the code. That can help narrow it down as to what to start looking for.
My guess is that if it's a MAF code then you either have a wiring issue (not likely if it was working before the cai), a bad sensor (again not likely if it was working beforehand), or a leak after the MAF, which is highly likely.
If it's not MAF related, then you need to look elsewhere depend on what the code is.
