Beginner's links

[Bill the arcstarter]

It was written:
>If you actually want to modify the data in the chip you first of all 
have 
>to read it. Secondly you have to know what you want to modify and 
>where this data is situated in the EPROM. If you kow all this data 
>you have to figure out what each of the values mean. Then you can 
>edit the EPROM data with an HEXadecimal editor. Finaly you can 
>reprogram the erased EPROM and see whether you have created 
>an explosion.

Yes.  Two links off the diy_efi page have some excellent introductory 
information on this process.  I learned a lot by reading through these 
links:

http://efi332.eng.ohio-state.edu/diy_efi/oem/gm/prog_101.html
http://efi332.eng.ohio-state.edu/diy_efi/oem/gm/tunetip.html

Also -be advised there may be a checksum calculation to be performed and 
programmed into the eprom prior to running it.  One of the above links 
has info on that too!

-Bill


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com