electric issue LMTV CAT C7

Hey, older thread I know... what year engine did you get the c7 engine from? I just did a ACERT c7 in my 1998 lmtv1078 and finishing up the wiring now, it runs great in the truck but have not drove it yet. I’ve done 30-40 re powers as I use to work for Cummins heavy line, just curious on the trans wires from ecm for data... thanks again and glad someone else took the plunge as I!

Has anyone sourced a wire schematic for the A1R truck yet?

I have the A1 wiring, it looks to be the same.

m-35tom said:

I have the A1 wiring, it looks to be the same.

Click to expand...

The PDP is different between the generations of A1/A1R trucks. All the S&S rebuilt trucks dated 2002-2005 I have are running WEC III harnesses with the C7 so we can work backwards there but the PDP is the module setup not covered in the ETM's released to the public so far. My trucks dated 2006-2008 have a different harness completely running WEC IV or WEC V with the module PDP.