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P0612

Question: 
2K views 4 replies 2 participants last post by  Trood74lly 
#1 ·
2004.5 gmc 2500hd duramax
looking for some insight on this code. The truck runs awesome and this is the only code in the system even after a couple thousand miles.
 
#2 ·
2004.5 gmc 2500hd duramax
looking for some insight on this code. The truck runs awesome and this is the only code in the system even after a couple thousand miles.
Welcome to DieselPlace

Here is a thread with some info on the p0612 code
(y)
 
#3 ·
Welcome to DieselPlace

Here is a thread with some info on the p0612 code
(y)
I looked through that thread and found something about a power for the ficm being different in the slot between gas and diesel. The fuse box I'm using is out of an 8.1 because mine corroded really bad and I swapped it out. Was wondering if that could be the reason for my code. If not where should I start for diagnosis.
 
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