CUCV
Member
Am about ready to put the replacement engine in my 1997 Sub this week. I did what I think is about the best to transfer the IP from old engine to new engine as close as possible to TDC on both. At any rate, I already talked to a reputable diesel shop (NOT A GM DEALER!) in my area and they can set the electronic timing. My question is, do I give them any specific instructions or does the computer set to whatever it's spec'ed for? I've never done this procedure, so I'm clueless. Since I know a lot of knowledgeable people on here have their own scan tool, I was wondering if there are any recommendations. I'm about 400' above sea level here and median annual temperature is 54.3 F (12.4 C for our Canadian friends) Don't know if these are pertinent or not. Only engine mods that I could think that would make a diff are an intercooler, #9 resistor and 3" exhaust. I don't routinely tow anything. Thanks in advance.