my bad prom

[Mike Rolica]

Bruce, what exactly would you like from the manual  ie wiring diag,
troubleshouting....? 

> -----Original Message-----
> From:	Bruce Wilcox (EUS) [SMTP:EUSBEW at am1.ericsson.se]
> Sent:	Friday, September 03, 1999 7:57 AM
> To:	'gmecm at efi332.eng.ohio-state.edu'
> Subject:	RE: my bad prom
> 
> Hi Mike,
> 
> I would be interested in a manual for the 87 IROC ( TPI ) .
> 
> Best Regards,
> 
> Bruce
> 
> > -----Original Message-----
> > From:	Mike Rolica [SMTP:mrolica at meridian-mag.com]
> > Sent:	Friday, September 03, 1999 7:23 AM
> > To:	Gmecm (E-mail); Efi332 (E-mail)
> > Subject:	my bad prom
> > 
> > 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