Bigreddaddy
New Member
New to the site and looking for advice. I have a 2003 Duramax. Engine runs rough almost like a misfire at low rpm. Runs great at high rpm. It will go into limp mode once in a while. Throws codes for injectors 1,4,6,7 and injector bank a everytime. One in awhile it will throw a low speed fuel pump code. Please help