Ajent87

I just recently finished up a motor swap in my 89 firebird from a 2.8 over to a vortec headed 355 with a fairly large cam along with the rest of my drivetrain from my v-8.
Now im moving onto the wiring part of the swap, the problem is i cant find any sources for the C100 and C207 connectors for the 89 or 91 so that i can repin them. if anyone has done this swap before any help would be greatly appreciate it. been driving carbs for the past 3 years, cant wait to get back into the FI game.

super_kev

iTrader: (4)

If all else fails, you could grab yourself a couple ('89 & '91) Helm service manuals (used at dealerships back in the pre-computer days) and they will have all the wiring diagrams.

Ajent87

well ive come across both of the 89 C100 and C207 pin outs over at austinthirdgen.org (great selection of diagrams) but they didnt have 1991 model year, only 1992. not sure if there are any differences but its all going fairly smooth. Only problem i have now are 2 wires (so far). These are on the C100 bulkhead connector. DK Green/White wire isnt on either of the sheets i printed. and the pink wire i have shown there, its the wrong size connector so it isnt going to fit into its new slot in the connector, anyone know where i can order an assortment of these ends?

Jza

The post sounded kind of like he needed the actual connectors themselves, not just the diagrams? If that was the case, I got mine out of a 90s Sunbird.

Ajent87

well going from an 89 harness to 91 leads to a few problems, some of the wiper wiring in 89 is actually integrated into the engine side of the C100 bulkhead connector which threw me for a loop. all i did on the socket side was rewire it for a 91, the spots were unused in the current 89 light harness so im just going to be integrating the wiper wires into the current harness i have. now it seems that the only problem i have now is that green and white wire. if anyone feels like saving me from a fun time tracing it out.wire feel free to chime in.

this has to be the longest weekend project in history

bingo

iTrader: (2)

Green/White wires are usually trigger wires for relays. Use a VOM and check for this color wire at each relay. This should help narrow it down.

Ajent87

Well I've actually made a good amout of progress on the C207 connector for the 1992 Speed Density side of this all.

A:Unused for TPI Applications
B:Injector feed for 1,3,5,7
C:SES Light
D:4000 PPM VSS Signal
E:Ground (not 100% on this one yet)
F:Ignition Feed
G: Injector Feed for 2,4,6,8
H:Manual Shift light indicator
J:Serial Data for ALDL
K:Unused for TPI Applications
L:VATS Signal
M: Underhood Light
N: Automatic Park Neutral switch
P:2000 PPM VSS Signal
R:Unused for TPI Applications

Alot of help goes to the site http://www.diy-efi.org/gmecm/ for various wiring schematics there. Looks like its time for the 89 V-6 side of all this. more as it comes.
If anyone notices anything wrong with my findings please do not hesitate