Hi guys,
Im a new mustang owner, recently purchased a 2007 mustang gt with headers and a CAI thats it. Im having an issues with emmisions and keep throwing a o2 sensor code. My front o2 sensors are sensing lean and was wondering whether this could be the cai?
Ford themselves told me the cai is causing the problem but i've had these problems before on my jap cars and usually it would f*ck with other sensors. Im new to mustang, searched online alot and am stumped!

 

My guess is the tune isn't correct for the headers and CAI ?

 

My thoughts also.
What kind of CAI?
What Kind of Headers?
Did they tell you when you bought it that it had a Tune?
From a Dealer of Individual?
Did you get a Tuner when you Bought it?

 

Hi guys thanks for the response. I bought the car from a dealer who is trying to help me. Ill be picking up a stock airbox n tube tommorow and reset the codes. Its only bank 2 sensor 1 which is odd. I have no tune on the vehicle that i know of and i do not have a tuner. I believe it is a c&l intake and the headers im not sure but will check in the morning

 

If your car is modified from stock and you don't have a hand held tuner , like an SCT or Diablo , you need to get one with a tune for your mods. If you have a local tuner that's best , if not mail order tunes from places like AM will work once you give them your mods.

 

Thanks for the information. I just picked up a stock airbox which I hope will fix the problem, if not, back to ford I go. Not looking to spend money on a tune right now or a tuner; things are tight after christmas, especially after blowing $1000 on an ar lol. Ill reset the codes tommorow and give you guys an update! Merry Xmas!