Quote Originally Posted by EagleMark View Post
PM Lextech for a diagram, he's got them all dialed in for the 0411 swap, probably very easy to go 97 to 98, same plugs. little wiring change, PCM looks the same and drops in.
Excellent suggestion. If this was the original 1997 Suburban that I was converting to the '0411, I think Lextech diagrams would be used.

I've been thinking about some of the differences that might not be in Lextech diagrams, because of this diesel to gas conversion. The donor 1997 Suburban wiring harness is for the 4L60E transmission and the 1998 K2500 has a 4L80E. There are going to be some changes required in the donor 1997 Suburban wiring harness because of 4L80E transmission. The diesel computer is under the dash, so I'll need to splice some of the diesel computer wiring (TOSS, TISS, & VSSB comes to mind) from the old diesel computer into the donor 1997 Suburban harness.

dave w