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Jerry Newton
Jerry Newton, Chevy Technician
Category: Chevy
Satisfied Customers: 4457
Experience:  ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
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I have an 05 dura ***** ***** diesel pickup. Often truck

Customer Question

I have an 05 dura ***** ***** diesel pickup. Often truck starts rough and runs on maybe 4 cylinders. After repeated removal of ign and injector fuses and restarting it will finally run on all 8 cylinders like nothing happened. Codes are po208 injector circuit open cylinder 8 and p2149 group b fuel injector supply voltage circuit open.
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Submitted: 11 months ago.
Category: Chevy
Expert:  Jerry Newton replied 11 months ago.

My impression is that this is the sign of a failing FICM. FICM supplies power to the fuel injectors, and it does so in two banks. I actually have one of these in the shop right now that is getting a new FICM. They are a lot of money, but if you are losing power to 4 injectors at once, short of a wiring issue, it's likely going to be the FICM.

Expert:  Jerry Newton replied 11 months ago.

Did you get this worked out? Wanted to follow up and make sure you got what you needed from me.

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