John W

guys,

my car is a 94, and so not OBD II.
Any ideas where I can get an OBD I scan tool from ?

How much does the porsche Hammer cost - are we talking $2k and upwards, or what ??

Ideally I would like a universal job so I can use it on other cars as well (VW, Peugeot, etc).

Finally, anyone got any links to sites that give all the OBD codes ?
If I knew the codes, and the interface details, I could probably make something myself...

Any help gratefully received

Ray Calvo

Far as I know, you're stuck with buying the Porsche tool. '96 and up with OBD II can use generic tools.

Want codes? Buy the shop manual; has 54 pages of descriptions of DME troubleshooting w/ fault codes.

John W

Thanks Ray,

I have the shop manuals, and ****-loads of other books (spent 500 GBP on books prior to and just after buying the car !) :/

The tricky bit though is getting the codes out of the DME/ECU, and lined up nicely on a piece of paper so I can compare them

If I could find details of the interface, wiring, and OBD I codes I could probably make some software to do what I want, but I can't find this supposedly public domain info.

Oh well, I guess I'll just keep looking for a cheap second hand one (yeah right !)

DougB

John,

Check out www.geocities.com/vaginfo/ for some basic info on the ISO9141 (not ISO9141-2) protocol used in these cars.

-doug

Jimmy

John,
check out www.obdii.com. The moderator of the Pre-OBDII forum (Under OBD-II Discussion Forum) should be able to give you more information.

NRK

John:

When you learn something on this or find an OBD 1 scan tool device, please let the rest of us know. Thanks

John W

Hi guys,

thanks for the links, I'll follow them up later.
I have already looked at most of the stuff on obdii.com, but there wasn't anything of help for obd-I, or the manufacturer specific details I was after.
The Vaginfo site looks good though. Hopefully I can expand that to work out how and what the porker stores.

A good friend reminded me that one of our skiing buddies works for Motorola. Guess what he does there ?!?
Yep, engine management and diagnostics !

I'm hoping he will be able to feed me some good info.
Whatever I find out I will certainly pass on.

By the way, I did a search for OBD using a piece of software called copernic. If you haven't tried it, its worth a go.
I found a whole load more info and manufacturers of OBD tools. Funny thing is though, not many can deal with VAG or Porsche

Cheers,
John.

Dave H.

don't obd1 porsches use flash codes like the vw's and audi's do?