Although I would be able to take a PIC and build it up, at this moment, 
I have more things than I know what to do with my time, and rather just 
buy something. I looked at Craigslist for lap tops, and by the time I'm 
done in that area with a little bit of extras like new batteries, XP PRO 
SP3, I'd be around $300, and still some what a pig in a poke (unknown). 
Not out of the question, but ??

Thanks for the replies


On 6/21/2010 12:29 PM, Adam Field wrote:
>> Is there a generic item that indicates ability to read the extended
>> parameters?
>>      
> There are a few different protocols when dealing with different
> manufacturers. If you're into DIY check out
> http://www.obddiag.net/allpro.html for a cheap kit. Also, ELM sells
> preprogrammed PICs. They also have example circuits in the data
> sheets. See http://www.elmelectronics.com/DSheets/ELM327DS.pdf . If
> you want a fully built solution go to scantool.net (Russell mentioned
> recently releasing their new DIP interface board, but they also have
> complete units).
>    
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