Re: EPROM Programming

[rr <RRauscher@nni.com>]

The TBI references the regulator to the atmosphere. Port is to manifold
vacum to maintain the same fuel pressure differential across the injector.

Yep, eprom burning is a simple as it sounds. The other questions
are too dependent on what bin/engine/ecm, etc. . ., is involved.

BobR.


WEG1192@aol.com wrote:

> Hello All,
>
> I am interested in modifying my GMECM EPROM. I have read Programming 101 and
> the tuning tips. So is it as simple as getting an EPROM burner, getting
> tuning software like Tunercat, getting their chip TDF file for the ECM that I
> have, making the changes, and then burning the chip? Will the .bin files on
> the DIY-EFI site work without any changes? Or do I have to remove the VATS
> and EGR functions? In reading the tuning tips by Dr. Bruce Plecan, it appears
> that you make a change, drive the car, then make another change. Isn't that
> very time consuming since you have to reburn the chip every time, or is he
> using some real time program he didn't mention?
>
> Last, does anyone know if the fuel pressure on a TBI system changes with
> engine vacuum like it does on a TPI system?
>
> Thanks for the help.
>
> John Wilson
> ----------------------------------------------------------------------------
> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> in the body of a message (not the subject) to majordomo@lists.diy-efi.org

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org