OTC 2000 Scan 4sale

[Dave Zug]

> In a message dated 8/12/99 8:45:16 AM Eastern Daylight Time, dzug at delanet.com 
> writes:
> 
> <<  used it in the early tinkering days to view ram locations by 
>  changing the ecm code to copy a ram location to the IAT location 
>  where I could view it with the scanner. Its good for seeing the O2 
>  while driving. Its also good cause it plugs into all your friends old 
>  cars not just GM >>
> 
> What is involved in adding these "patches"?? Is it actual programming which I 
> dont know? Or is it merely changing a lookuptable value and copy/pasting into 
> code, then burning? Please excuse me if this is a stupid question, but thats 
> an avenue I'd like to learn now that I'm comfortable editing table data..
> 
> Jim

Yes its code. Others use a method of changing what the ALDL is 
looking at which is a much better way. I just inserted a JSR to a 
blank area, duplicated the code who's space I took up with the JSR 
instruction(s) and then added code to copy one location to another. 
this only really is advisable when using a destination location 
thet  a) is scanned and b) is not used for any control... like the 
prom ID bytes or in my case, the IAT as well. not the fastest way to 
do things but hey I was trying ;-) 
~~~
Dave Z. www.delanet.com/~tgp