Speed Pro/ESC question

Bruce Plecan nacelp at bright.net
Fri Dec 15 00:43:48 GMT 2000



>From ESC module,
yellow to ecm, blu to sensor
Blk or blk/wht, ground
pnk, pnk/blk power
Bruce


> Looking at the Accel catalog I see 4 wires in the ESC harness. 2 of them
> are definitely terminated to plug into the knock sensor and ECU so the
> other 2 would have to be power and ground
>
> Now if I could tell you which one goes where I would but I'm not that
> far along in my project.
>
> Rob_O
>
> Jeff Moskovitz wrote:
>
> > Anyway, the Speed Pro uses a GM ESC module and knock sensor for knock
> > retard duties. The ECU has a one-wire input from the ESC -- not sure
> > which wire, as I'm not sure yet just how the ESC gets hooked up, but I
> > assume the ESC has something like a positive, ground, signal in, and
> > signal out, and it's this signal out that gets wired to the ECU.
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