Need some help!!

[BAB02LIGHTNING]

I have magna flow mufflers, x pipe and now magna flow hi flows cats. I have 2 hi flow cats now instead of the 4. After getting the hi flows put on the check engine light came on with the codes p0171 and p0174. Looked it up it says bank 1 and bank 2 are running lean. What can I do to fix this?

Thanks guys

 

[01silverlight]

I've heard you can get a programmer to turn on the check engine light...not 100% sure though. Maybe someone around your area who does tunes can also turn of your check engine light? But if you are running lean, it might be good/safe to get it checked out just in case.

 

[operator1391]

you may need to get your rear cats turned off by your tuner....