Thanks for the info Herbert.. immediately after I sent my first message, I
ordered the factory service manual from ebay, so that should hopefully be
worth something (considering that the shipping will cost as much as the
book!). Will it explain the protocol though? It doesn't seem likely that
they would make it that readily available. Anyway, I have also seen that
word you mentioned, OBDII, floating around a lot, so I will do some more
research on that. If anyone knows any good resources off hand, please let me
know!

Jai

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Herbert Graf
> Sent: Monday, September 08, 2003 1:22 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: Next big project
>
>
> >  While planning out what I should do for my next project, I decided on
> > implementing a little 16f-driven monitoring unit for my car. I am
> > hoping to
> > have such functions as trip timers, mileage calculators, temperature
> > sensors, fuel level etc...  ideally, of course. Anyway, if I am not
> > mistaken, I will have to look into interfacing to the ECU,
> > correct? Is this
> > data something that is readily available? ('96 Nissan Maxima), or is it
> > something that I'm going to have to try and figure out on my own. Any
> > direction is appreciated,
>
>         That is something I actually started doing on my car, but
> got bogged down
> with other things and never finished it. The biggest issues for
> me was data
> storage (since I was making more of a black box then just a monitor). I
> STRONGLY recommend you get a shop manual for your car, I couldn't imagine
> trying to interface to today's cars without one. Even installing an alarm
> system is many magnitudes easier if you have the shop manual. With that
> said, you car does have OBDII, so you SHOULD be able to get many
> parameters
> from that bus. TTYL
>
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