Going to be an awesome build.
Thanks. It's been fun so far. I'm now at the point where I want to get this damn engine running and start building other stuff.
We are discussing the wiring a little bit here in Bangintin's 5.9 build
, but I want to keep my thoughts documented here as well.
He posted some good pics of his wiring, but I noticed that his C103 and C104 plugs are different from mine.
My 1997 C103 (4 pins x 4 rows)
My 1997 C104 (5 pins x 2 rows)
I peeked at a 1998 to see where it changed, and that's different still, with a 14 pin C103 and a 10 pin C104. For these two plugs, there's no one solution; it's dependent on the year of the Jeep.
I started labeling the PCM wires last night and got through the Grey plugs on both harnesses. The FSM describes the wire color as "18DG/WT". I found that there are other circuits that may use that wire color (DG/WT) but that number designation in combination with the wire color is unique to that part of the circuit. The Dodge harness and Jeep harness are similar, but some of the wire colors are different and circuits named differently, even if they control the same thing. I moved some of the wires from the Dodge harness to the Jeep harness. IIRC, I moved the leak detection pump and O/D off wires. The Jeep was a manual, and also had no LDP.
What I haven't taken the time to figure out yet is what should be on the other end of the wires that I'm moving to the Jeep Grey plug. The few wires that I moved run to the Dodge PDC. That must mean they went to a fuse (or relay?) in the Dodge PDC. Do I need to connect them to the Jeep PDC, or is there another end to that wire on the Dodge harness that I need to extract, and splice to the wire I moved to the Jeep grey plug?
I think that the other two plugs, black and white, are pretty similar between the two vehicles, with the exception of 4 more injectors. Next to-do is compare the two blacks and whites to see what's different and label the wires.