I just installed an AFE stage II CAI on my 2004 f150 fx4 Saturday, when driving normally everything seams to be just as it was before. When i get on the accelerator hard, my engine light will come on and i check it with my scanner and it is saying bank 1 fuel too lean and bank 2 fuel too lean. So i am assuming, i need some bigger injectors to get the full effect. Note i had no issues with the system running lean before the AFE install. So my question is what injectors should i run with my system? Any help will be greatly appreciated, Thanks!

 

You don't need larger injectors, you need a tune.

 

What tuner do you recommend for the money?

 

Your sig says you are custom tuned. What tuner are you using?

 

My sig is wrong, i have a superchips flashpaq with canned tunes.