Code issue with new exhaust installed
Thread Starter
Burning Brakes
Joined: Oct 2002
Posts: 980
Likes: 12
From: Clayton, NC
Code issue with new exhaust installed
I have a 2017 GS with the NPP exhaust. While at Carlisle I had The B&B bullet exhaust installed. I am now getting the check engine indicator with the code P12FD-00 which I was told is saying that the baffles are stuck in the open position, Does anyone know what has to done to stop this error code from coming up
Thanks
Thanks
Team Owner
Joined: Aug 2000
Posts: 24,101
Likes: 1,327
From: Spring Texas
Well, they are. It appears that checking the valve movement is all part of the car boot-up process. There are other threads on this issue.
Racer
Joined: Oct 2016
Posts: 307
Likes: 105
I'm not so sure about that. Many guys have pulled the fuse for the valves, not allowing them to move. If the car checked the valve movement on each startup then everyone that has pulled the fuse would have a problem. My valves have been sitting in my garage and I have zero issues as well.
Thread Starter
Burning Brakes
Joined: Oct 2002
Posts: 980
Likes: 12
From: Clayton, NC
Code issue
I'm not so sure about that. Many guys have pulled the fuse for the valves, not allowing them to move. If the car checked the valve movement on each startup then everyone that has pulled the fuse would have a problem. My valves have been sitting in my garage and I have zero issues as well.
The exhaust was replaced from the X pipe back. Where would the NPP valves be found. I would think the installers are Carlisle would know what to do to properly install the new exhaust
Thanks
Burning Brakes
Joined: Sep 2007
Posts: 1,048
Likes: 300
From: FL
The 2nd set of valves come with cars equipped with NPP exhaust, which the GS has by default. These valves are located in the outer exhaust tips. They control the exhaust volume levels based on your setting, ie tour, sport, track, etc. Some folks pull the fuse controlling these valves so they stay open all the time. They will not throw a check engine light.
That said, I would check if the AFM valves are properly connected and still functioning properly.
