my bad prom

[Mike Rolica]

OK so I know my prom is junk.  It's a hypertech (no It is not the piggy
back type-165ecm)now my OEM prom needs a signal from the vats module
(5v at 30hz square wave) I have the OEM service manual from gm (it is the one
that the mechanics use at the dealership, it's about 4"thick) I have access
to allot of them (86-96 and EFI gm car/truck) If anybody is interested just
email me. I can scan what you need and send it to you.  Anywayz,  the signal
the vat needs, is the amplitude of the wave from 0-5v or is it -5v - +5v?
How can I build something to bypass this?
Mike  Rolica :)
mrolica at meridian-mag.com
(519)-245-4040
EXT: 260