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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I have a 2006 Chevy express 3500 6.0 I someone pullou the

Customer Question

I have a 2006 Chevy express 3500 6.0
I someone pullou the codes due the truck is misfiring
He pull out codes that 3 injectors were not working at all
I replaced injectors 2,4 and 6, but issues still the same, I pulled the codes my self and I have one code P0200 injector circuit malfunctioning, I tested the harness to the injectors 2,4,6 and 8 and there is no power at all, can you please let me know what is going on
Submitted: 1 year ago.
Category: Chevy
Expert:  tripletauto replied 1 year ago.


There is no power or no pulse.they should have a steady 12 volt power and the ground is triggered thru the computer. If it is no power supply you most likely have a broken wire going to that side. check your eng fuse 2

Customer: replied 1 year ago.
That's is the first thing i checked the fuses but all of them are ok, can you send me a diagram of the harness leading from ECM, fuse box leading the injectors
Expert:  tripletauto replied 1 year ago.

That is the schematic. You need to check if it is power or ground signal missing. Follow the harness from rt side injectors and look for any visible damage