i bought the bbk cai a few months ago, and it said it required no tune and was just bolt on. i put it on and it ran perfect but after a day or so, the check engine light came on, i didnt think anything of it, because it had came on about a week before because of the gas cap being loose, well i ended up taking it to ford, and the guy there's words exactly were "that aftermarket intake is making it run lean as a son of a bitch" so i replaced it with the stock part. but i just dont understand why it was causing it to run soo lean, and i dont know what i have to do to fix it, because i would like to put it back on. can anyone help me out?

if this helps... the intake was on for about a month with the engine light on, and it ran perfect, there was no sign of it running lean.

 

From what I've read even the intakes that say they don't need tunes.....need tunes. Our cars are so computer ran that making changes like the intake will make the car run lean and cause problems. My suggestion is keep your stock intake on until you can afford a tune.

P.S. it is always best to take your car to the dealer with your stock equipment, Some (most in my area) will find any reason to make you pay for anything wrong with your car.

 

It seems that any intake that is worth anything requires a tune. If you have one that doesn't, it's probably not doing much more than your stock air box. I can't tell you what to do, but I'm thinkin' that if I were in the same situation, I'd probably get sell the intake that you have and buy a good one with a tune. Look at the sponsors, there are several that will sell the c.a.i. and a tuner as a package deal.

 

Yeah,time for a tuner. Our cars are very computer sensitive to air-fuel changes. VMP,Bama,Brenspeed,plus a fewmore will fix you right up. Yes,it is a little expensive($379.00)but you WILL love the results! If your car is an automatic you WILL REALLYLOVE IT, it gets rid of that terrible downshift lag. THIS is the best firstmod you can do to your V6 Mustang. I recommend VMP.

 

according to the instructions that came with my BBK CAI, the tradeoff for not using a new tune is that you usually need to run a higher octane gas than 87 in the car to prevent it from running lean. they say this should fix the problem and it has worked for me, but others have said that youll need a tune because even with a higher octane it will still run lean

 

I have been in the BBK CAI running lean club for a while - I would like to replace my CAI It's been throwing the check engine on my dash on and off for about a year now - I just use the predator to clear the codes and made the air/fuel more rich- doesnt happen as often - especially with the higher octane- but I doubt you or I will ever not have issues with that BBK CAI - I'm tossing it as soon as I get a new one-

 

do you have a tune in the predator for the bbk?if you do you shouldnt be having a cel,ive had my bbk in the car since i bought it and i have never had a cel.i just change to the c&l racer cause of all the hype and honestly i didnt feel much of a difference in performance.

 

No there is no tune in my Predator for a BBK - They told me(diablosport) - try this tune - try that tune - None worked- So I have just been adjusting the computer with the tuner through trial & error - I am going to order a few throug Bama - I need a nitrous tune - but first I have to sort out the CAI issue for good - It's always lean with the BBK- bank 1 + 2 -

 

at least order a mail tune from bama or brenspeed.you might not have a check engine but eventually something will give.is not worth replacing an engine for something that could have been prevented for 75.00 dollars.

 

Que? What will go wrong? the check engine LED will burnout ? The cars running fine I adjusted the A/F ratio - The point was that the BBK CAI is advertised as no tune - when in fact it does require tuning - which is false adverstisement. That's all-