Ford Mustang Forum - View Single Post - CEL Codes after CAI/Tune - ECU Question
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post #3 of (permalink) Old 01-27-2016
TheJMan48's Avatar
Joined: Apr 2014
Location: Anthem, AZ
Posts: 41
This may seem basic, but was your MAF plugged in correctly? I accidentally left my MAF unplugged once after cleaning it on my old Explorer and it gave me similar codes for the IAT and MAF circuits being open. If the IAT and MAF sensors are integrated into the same unit, which I believe they are, then I'd look at the electrical connection at the MAF housing to make sure it's seated correctly and that there are no broken pins or wires.
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