Open harness surgery. I hope the patient does well. One potential issue. That red grey pair of wires that are twisted together. That is likely to be a data transmission pair, and the twisting of each around the other is important to rejecting noise from being induced into the data stream. So if you see weird computer issues, try resplicing them in such a way that the twist continues all the way through the splice zone. If you already know this about this, just ignore me. Have a good summer.

I wouldn't ignore you Dale, your point is spot on! its a data pair, twisted and clad in foil, I twisted them extra tight so that I can massage the twist back along the pair, its a can bus pair back to the powertrain control module. It held me up for a little while figuring out how to get the twist and the splice. All the fuel injector control pairs are also twisted but not shielded, this has both. I guess can bus is picky.

Glad you are ahead of me on that. Data cables are sensitive in non-obvious ways to things like shielding and twisting.

Shielded too. Hmmm... you may be able to recreate the shielding with some aluminum foil wrapped around it and the protecting that with some of that self-fusing silicone electrical tape to get a watertight seal. Make sure the foil gets a electrical contact back to the shield foil in the old cable.

I was thinking of using aluminum duct seal and then zip a drywall screw through it and into the valve cover. I figure if it acts up, I have some leftover stainless braid from the cheezy hot-rod days, remember they sold it to slide over your hoses, figure that'd work allright if needed, solder a braid to each and and ground it up.

Gotta be careful on the grounding also. It wants to be grounded at only one place. If it has multiple ground connections that are distant, you can get residual currents using the foil shield to get back to the battery. Mostly likely when the engine is cranking, and the engine block gets energized by the return current from the starter. This will also dump lots of noise in the data stream.

Indeed, one mod I've made is to bond the grounds and run a 2/0 right to the starter mount itself, seems to help just a little when things are really cold

took it out for a few spins, going from 6.5 cyls to 8 makes a big difference, will see if all my splices hold, I do like the dual heat shrink though.

Mmm, more power!

and actually more mpg as well, with all 8 churning the turbo spools up super fast and it cruises nice too, for 10500 pounds of iron.

some things I can fix, some things I can't

Very good work!

Thanks, I had not seen that kind of failure since the early 80's chevrolet's where the insulation would fall off the wires, the power/ground wires were fine but all the others were mostly bare for large sections right near the connector.

Nice ^^ now 100% ^^

Yep, seems to be running like a champ! now to get that crankshaft oil seal fixed.

Oil seal are esay and fun fix ^^

quite possibly, though it requires two tools each about $200 to remove and reinstall the seal and wear ring. Local shop has quoted a very reasonable price for the job and it'll be the first ever time that someone has worked on my stuff.

Yes! You are right!

Holy SHIT nice job!

Dealerships don't do it that well.

Thanks, I think it was actually shorting out the can bus, but its been running solidly for a while now.