GM ECM Flash programmer

Wayne Blair wayneb at foxboro.com.au
Wed May 13 06:57:45 GMT 1998


>	Interesting product! I took a quick look at the site. I
>	still haven't quite figured it out yet. Looks like they
>	actually replace the Memcal with a custom board. 

A battery backed ram dallas ????? replaces the eprom  add a write/read wire
from main board

Use diagnostic protocl to write at eprom, or hook into comms interrupt
(educated guessing here).
Then tune live 

>They dolist some 5.7 liter & 4L60E PCM's, but their discussion
>sounds like our older TPI batch fire systems rather than the
>Sequential LT1. 

Precisily

> I will look at the numbers on my PCM
> tonight and see if it is one of the ones they support. It is
> not obvious if there Memcal will work on the LT-1, 

dunno

>or why they replace the memcal. 

see above


wayne



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