Speed Pro/ESC question

[Rob O]

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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