I can't vouch for the circuit, as I use one that is similar, but also very different (???), but for a better explanation of our OBD connector, check out PPT's site:
http://www.pptracing.com/framedpages/datalogger_installation.htm
The wire colors won't match (of course!), but the pins are the same:
1) Pin 1 is the top left contact in the connector, and this is the one that the bidirectional data flows on
10) Pin 10 is the same pin you ground when you set the timing, the third pin from the bottom right. This pin must also be grounded when you intend to datalog
12) Pin 12 is the bottom right hand terminal, and it is ground.
All you have left is to find a good 12 volt source in the fuse box.
Hope this helps,
Jeff O.
#1886/2000
http://www.pptracing.com/framedpages/datalogger_installation.htm
The wire colors won't match (of course!), but the pins are the same:
1) Pin 1 is the top left contact in the connector, and this is the one that the bidirectional data flows on
10) Pin 10 is the same pin you ground when you set the timing, the third pin from the bottom right. This pin must also be grounded when you intend to datalog
12) Pin 12 is the bottom right hand terminal, and it is ground.
All you have left is to find a good 12 volt source in the fuse box.
Hope this helps,
Jeff O.
#1886/2000