2003 injectors duramax injector lb7 2004 gmc 2001 engine 2006 controls sierra fuel gm 2500hd 6l ficm harness chevy 2005 2001 gmc duramax open injector circuits on cylinders 1,4,6, and 7
2001 gmc duramax open injector circuits on cylinders 1,4,6, and 7