The wiring diagrams I did on mine were 1970. There may be some stuff that is the same but your year has more of the electronic do dads that mine doesn't.
Yeah, I have quite a bit of tech data on the wiring and don't anticipate too many problems, especially since there are a lot of mods to the electrical system anyway. But I did run across 2 things that might be worth sharing.
A while back I ordered a laminated print of the entire wiring diagram on one poster sized sheet. I thought it might be handy to see the whole thing at once, plus the ad said it was in color. But when I got it it was in color alright: All blue! The wiring color codes were printed by the wire but the print is fuzzy and hard to read. Just to make sure it wasn't my eyes that were fuzzy I had my son take a look at it and yep, it's fuzzy! It didn't cost much so it was no big deal. Probably will still be handy.
The other thing is the factory service manual reprint that I ordered a couple years ago. It looks just like the original. In fact I have an original Service Manual for the 1982 that I bought back in 1982. The manuals have the schematics for the sub-systems printed out in colors that match the actual wiring. Before I took my 81 all apart I was troubleshooting the power windows and something about the schematics in the 81 reprint manual just wasn't making any sense.
Then I noticed that the reprint manual just used grey scales in the electrical section instead of actual color like the original manual. So I got out the original 82 service manual and flipped to the same window section (the 81 and 82 manual are virtually identical except for the Cross Fire circuits) and there it was: The yellow wires did not print in the reprint version anywhere! Once I figured that out everything fell into place. Thought I'd mention that JIC anyone is using a reprint manual, it's not a huge deal provided you know that any yellow wires will not show up in the reprint.
What do you do when you accidentally wipe all the fuse panel labeling off with solvent?? You spend a rainy afternoon putting them back on...
This isn't a big deal but it turned out better than I expected so thought I'd share. Used a Brother cable labeling tool with 1/4" white on black tape and the smallest font it had. Still had to trim the label width after printing but was actually pretty easy.
A little progress to report, set the body on the chassis for the first time since paint. I'm building up the harnesses, re-routing big cables, finding a place for everything, etc. The yellow tape is temporary, just keeping everything in place until I'm happy with the layout. Then I'll put it all in conduit and get it permanently mounted.
Been a long road with lots of interruptions but I'm starting to see some light at the end of the tunnel!!
Worked my way up to the point where I needed to install the accelerator. The one from my donor car (2010 Camaro SS) did not have a prayer of fitting. After some research I finally decided to go with the GM Performance P/N 19354328 LS3 ECU kit. It includes the wiring harness, ECU, accelerator, etc.
The accelerator and bracket it came with were a better fit, but it was a LONG way from being a bolt in fit. The bracket is intended to be mounted on a flat firewall, like many hot rods and tri-fives. But the C3 has a firewall that is anything but flat.
I modified the supplied bracket and fabricated several parts and doublers in order to get a good install. But it was a LOT more work than I thought it would be. In fact I'm not sure it would be possible on an assembled C3 due to such limited workspace.
For anyone attempting this install I would recommend doing a lot more research than I did! Surely there is an accelerator setup that is easier and still is compatible with the LS3 ECU. Here are a string of pictures showing what I did, they should be self explanatory.
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