LT1 EEPROM Programming Help

Ken Kelly kenkelly at lucent.com
Fri Jun 11 01:28:15 GMT 1999


I have an editor working for the Fuel and ignition tables for the 94-95 LT1. I
haven't finished the T side which has the Fan turn on and Transmission tables.
Another List member- Dave is working on the ADL interface software. He has the
software to read out you EEprom data now, and will have the write section going
soon.

	You PCM has 2 motorola 68HC11F1's and 2 512K byte Flash chips. The CPU is a
slightly modified 68HC11 sold to GM.

		Ken

Jeff Bromberger wrote:
> 
> Hello, I'm new to the list so forgive me if this has been asked
> before...
> 
> What are my options to reprogram the EEPROM on my '94 LT1
> camaro? I'd like to change values such as fan turn-on temps,
> timing advance, injector/fuel maps, etc. I don't want to use
> something like the hypertech programmer, I'd prefer to do it
> myself. Is the PCM proprietary hardware or is it a commonly
> available uP like a motorola?
> 
> any help would be greatly appreciated,
> Jeff Bromberger
> bromberger at home.com



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