CUMMINSTD
New Ride, Poor Wallet :/
- Joined
- Sep 2, 2009
- Messages
- 388
My buddy installed a bully dog downloader in his 06 duramax, and after the install none of the glow plugs work. He took the bully dog out and they still wont work. He is getting trouble codes po671 through po678. Could the programmer have messed anything up or could the module just be bad?