[diagram] 66 duramax wiring diagram 2003 injectors duramax injector lb7 2004 gmc 2001 engine 2006 controls sierra fuel hd gm 2500hd 6l ficm harness chevy Q&a: lb7 duramax ficm fuse location, firing order for lly duramax, duramax
Q&A: LB7 Duramax FICM Fuse Location, Firing Order for LLY Duramax, Duramax
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Q&A: LB7 Duramax FICM Fuse Location, Firing Order for LLY Duramax, Duramax
![[DIAGRAM] 66 Duramax Wiring Diagram](https://i2.wp.com/ww2.justanswer.com/uploads/MU/muddyford/2013-05-02_005317_1.jpg)
[DIAGRAM] 66 Duramax Wiring Diagram
LB7 & LLY Duramax Injector Troubleshooting | JustAnswer