my bad prom

[Bruce Wilcox (EUS)]

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