New exhaust woes
Thread Starter
Instructor
Joined: Sep 2025
Posts: 103
Likes: 59
New exhaust woes
Short story:
installed new catback vavlved exhaust.
getting 3 CELs:
P31D3
P12E9
P12E7
My Creader tool wont relearn the new system. Says it is out of range. I assume I need to adjust the actuator arm on the AFM module. NPP valves open and close between Z and touring mode.
I do not feel like taking the rear bumper off again right now to gain acess to the AFM module linkages. Is it ok to continue to drive as is with this CEL? My mind says yes, but just need confirmation. side note: company i got it from was zero help. Their advice was....take it to gm and have them reprogram the exhaust.
installed new catback vavlved exhaust.
getting 3 CELs:
P31D3
P12E9
P12E7
My Creader tool wont relearn the new system. Says it is out of range. I assume I need to adjust the actuator arm on the AFM module. NPP valves open and close between Z and touring mode.
I do not feel like taking the rear bumper off again right now to gain acess to the AFM module linkages. Is it ok to continue to drive as is with this CEL? My mind says yes, but just need confirmation. side note: company i got it from was zero help. Their advice was....take it to gm and have them reprogram the exhaust.
Race Director
Joined: Nov 2006
Posts: 13,252
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From: Sunshine Coast, Queensland, Australia
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Cruise-In VIII Veteran
Just wondering if your certain you posted this in the correct forum.
