FUEL TRIM CODES
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1st Gear
Joined: Jan 2026
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FUEL TRIM CODES
Has anyone had codes thrown from running a S&B CAI? I’ve had one in the truck for about 40k miles no problem obviously cleaned and changed the cone. Threw a MAF, replaced that now it’s saying the iat sensor is bad,fuel trim codes etc. I’m stuck on where to go next with this.(Dealer won’t diagnose further unless returned to stock)
Hotshot
Joined: Jul 2013
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Only advice I can give you is not to assume adjacent sensor are ok.
you didn’t say how many total miles
also…your cold air intake is just a dealer road block…find another dealer if you want dealer involvement.
there should be multiple codes listed what are all of them
you should compare your MAF, IAT, MAP, EBP , DPFinlet numbers at different rpms to known good readings
you didn’t say how many total miles
also…your cold air intake is just a dealer road block…find another dealer if you want dealer involvement.
there should be multiple codes listed what are all of them
you should compare your MAF, IAT, MAP, EBP , DPFinlet numbers at different rpms to known good readings
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Gryphon1962m
1987 - 1996 F150 & Larger F-Series Trucks
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Jun 2, 2016 02:59 AM
