Hey guys,

Swapping out the factory harness on my '88 to upgrade to an MS3. (was running the factory TPI harness on the MS2).

The injector power wires from both INJ fuses also go through C207 ?

Lastly, the ECM fuse power goes through C207 ?

I'm running the MS3 standalone harness, so when I remove the factory harness I need to reconnect the VSS wires, and I'd like to use the injector fuses to power the injectors, ecmfuse to power the MS3. Looks like the VSS runs through C100.

 

Here's what I've got for the 88 (& 89?) C207:

1988 C207 (maybe 89 too)

PIN Color From / To (Notes)
A Brn ALDL pin C / ECM (AIR control)
B* Pnk (Red) INJ1 TBI (TBI)
B* Pnk/Blk (Pink) INJ1 (V6)
B* Pnk/Blk (Black) INJ1 (TPI)
C* Brn/Wht ECM / CE Light
D* Brown (Tan/Wht ) Fan
E Wht/Blk ALDL (pin B) / ECM (test)
F Pnk/Blk IGN fuse / ECM
G* Pnk/Blk (White) INJ2 TBI (TBI)
G* Pnk/Blk (Pnk/Black) INJ2 / (V6)
G* Pnk/Blk (Black) INJ2 (TPI)
H Tan/Blk ALDL / TCC-ECM (auto)
H Tan/Blk ALDL / Upshift (stick)
J* Org ALDL (pin E) / ECM
K Brn/Yellow (brown) ECM / Buffer
L Drk Blue (purple) Vats to ECM
M Blk/Wht VSS,P/N switch / Grd
N Org/Blk ECM / P/N switch
P
R Ppl/Wht Crank Fuse / Cold Start-ECM

Hope this helps !!!

 

Thank you!

So looks like for my MS3 I just need to pull both injector power circuits through the bulkhead to the engine side harness.

Looks like pin H is the "shift light" on manual trans cars, so I'll wire that to an output as well. Cool cool

Thanks again!