Hey guys I have a 2007 gt with 3"o/r exhaust with x-pipe, no cats, a steeda high flow intake and custom tune. When I got the car it already had the exhaust on it and had 16,000 mi. After about a month of having it i reciaeved a p0171 code. I took it to the dealer and the said they checked everything and it's just the exhaust. So I added the cai and the custom tune from american muscle thinking that that would fix everything but 2 days later it was back. Funny thing is is that when I got it it was a month before the cel showed up now depending how much I drive it's about every 2 days. And it started doin this before I put the intake and tune on. Any help will be appreciated!!! Thanx guys!!!

 

You need to have the tune for the OR Exhaust. Call and ask the tuner what the promblem is and that you need it fixed. First place I would go.

Chad