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I'm @ it again, trying to put another good car back on the street. I'm looking for the engine harness part #84458895. This has to be the most frustrating part I've ever come across. Online vendors claiming they have it, just email me back and refund my money within the same day, because they can't get it. Salvage yards that have one won't sell it because they want to sell it with the engine, as a hot rod kit, to a prospective buyer. This car was an engine theft, and they cut the harness off a few feet before the ECM. The engine donor car had enough collision damage that the harness was too far gone. I'm to the point of offering a finder's fee if someone has a solid line on this harness and I can buy it. It is for a 2019 3LZ automatic coupe VIN ending K5600127. I think I can make part# 84294142 work in place of part#84458895. The only difference in the option codes is (07-67), which, if I Googled this correctly, is a floor mat option code. Everything else is the same. I will paste my car, 2019 model year first, then the 2018, which I believe will work in its place. I know that GM says they don't interchange, but over a floor mat option??
Some of the sites I checked indicate the part is backordered. Have you visited your local GM Dealership Parts Dept and talked to them? They may be able to give you more info. I have had a few parts guys who knew what they were doing find parts for me or tell me why I wouldn't be able to get the parts.
I have spoken to the best of the Chevrolet dealers' parts directly. They said there wasn't even one on another dealer's shelf to even call and check on. I ordered this other harness, and I will keep this post updated on whether or not it will work. I'm confident, but not blinded by it. I have been bitten before in these types of situations, so I remain on the fence.
Wiring will be the scourge of cars one day, you'll just have to toss one because of it. Annoying because to make the harness isn't hard especially as a one off, wouldn't be cheap but can be done. You can't by chance combine the two to make one. As in where is the damage and is it on the same wires? Obviously without soldering, that's frowned upon but honestly you could with the cut one, but a custom inline automotive grade connector, pin out the harness, and attach another shorter pigtail. Yes it raises resistance, but its better than no harness.
07-67 isn't an option code. 07 means it works on a coupe. 67 works on a convertible. If it has 07-67 then it's the same harness for a coupe and a convertible which you'd expect for an engine harness.
They change little crap all the time. Could be as mundane as a wire color or something like a connector style/shape. You know that physically the engine dimensions didn't change and that the sensor locations didn't change between 2018 & 2019. Worst case you need to re-pin a connector or two or perhaps swap connector ends. I'll even wager a 2017 Z06 engine harness will work.
One thing that would be worth checking is the PCM pinout and connector types. Going from memory, the 2017-2019 cars....except the ZR1....all have the E92A PCM. Therefore the pins should be the same, but it's worth checking since those would be a PIA to swap around in-car.
This and $5 will get you a cup of coffee but that's my opinion from having dealt with stuff like this before.
Thanks so much for clarifying the 07-67, I couldn't always believe Google! Great news on this front, after nearly 7 months, the correct harness has FINALLY come off back order. After speaking to the dealer when I picked it up, they said the other part number was discontinued. However, all that aside. The car is running and getting ready for stainless, headers, high-flow cats, new tires, and one massive detail! Thanks again, everyone, for all the deep diving into this matter.
Thanks so much for clarifying the 07-67, I couldn't always believe Google! Great news on this front, after nearly 7 months, the correct harness has FINALLY come off back order. After speaking to the dealer when I picked it up, they said the other part number was discontinued. However, all that aside. The car is running and getting ready for stainless, headers, high-flow cats, new tires, and one massive detail! Thanks again, everyone, for all the deep diving into this matter.
pics or it didnt happen!!! . love that you recognize salvage cars can be brought back from the dead. saved 20k$ off mine and its been trouble free (except for my mistakes!)
The first photo is right after I got it. You can see how they basically used a sawall to cut back the firewall. This was very tricky to repair, I had to have a Corvette salvage yard send me a complete upper front firewall/dash to graft it back into the original body. The second is with the new harness installed, currently awaiting the front bumper to be repainted. The windshield and the competition seats are in now, just don't have the current photo. But, another week or two, she should be back on the
street!
Interchange Wiring Harness?
. love that you recognize salvage cars can be brought back from the dead. saved 20k$ off mine and its been trouble free (except for my mistakes!)
