2011 Mustang GT 5.0 - about 37k miles.
Mostly stock - I have added Borla axle backs. No other real changes other than appearance.
I installed my Airaid Race CAI and new tunes about a week ago. The CAI does not have a MVT insert. The install went smooth and there were no issues there. The tune was uploaded but right after, when I cranked the car for the first time there was a LOT of noise under the hood along with a significant amount of knocking. It did that for about 2 minutes and then settled down. Idled fine at about 1000 rpm's. I test drove it after and it was fine..seemed crisper with better throttle response. No CEL. That was last weekend. I have driven it it once since with no issues or weird sounds.
Cranked today and CEL came on. Checked codes with with my tuner and came up:
P0100 - Mass or airflow sensor A circuit
P0108 - Manifold absolute pressure / barometric pressure sensor circuit high
P0110 - Intake air temperature sensor 1 circuit bank 1
I talked at length with a performance guy at Airaid and he was really nice and gracious with his time considering we were talking about a used CAI. Albeit it looked new but it was not new, nonetheless. His recommendation was to remove the CAI and clean the MAF with mass airflow cleaner in case anything had built up on and could be affecting the extricated integrity of it.
I also emailed my tuner and he emailed me right back and said he had not seen that before but wanted me to verify the strategy code so I sent him a screenshot. He said that changes everything, that the code I sent him references a VJK0. At some point my car was flashed by ford, and the XNF3 number I gave originally was not correct. He said my tune needed to reflect the strategy code.
The issue is, the sticker on my car in the engine area shows XFN3. I sent him a picture but he said the sticker is NOT correct. Is that unusual?
He did send me a new tune but I have not yet loaded it. This is my first tune so I don't want to mess the engine up and the sounds the first go round were frightening lol.
Any experts on here seen this before?
2011 Mustang GT 5.0
Borla S-Type Axle Backs, Billet GT Fuel Door, Strut Tower Brace, Raxiom Tail Light Sequencers, Airraid CAI, Steeda Race Tune, RTR Racing Stripes, Blacked Out Rear Deck & 5.0 Emblems, Side Louvers.