3.6 conversion - how do I connect a "Hammer"
 

So my Rat Rod is now running and to a point where the engine needs a little TLC. It has some issues like;

• Runs rouch at cold start, warm it runs pretty good at idle
• Misses at full throttle accel, so I adjusted the airflow meter spring tension to help this a lot. This is a bandaid though because AFM should not need to be touched.
• When you stab the throttle quickly (like cruise to WOT) there is a big pause, then the car pulls.

Those are a few of the issues. I know its not the ignition, that has checked out. It could be fuel pressure (installing a gauge this weekend to check). I realize my best bet it to put the car on the dyno, and read the AFR's as see where it is at. The car has a Steve Wong Chip, so I know that part is wonderful.

I also realize I would still be flying pretty blind but, if I could communicate with the ECU though a Hammer or a similar device, I would probably learn a lot that would guide me in my quest to get her running well. Question is what wires do I need, where would they be found in the 3.6 wire harness (colors etc) to connect up a hammer? I did not do the conversation, or I would have left those wires out.

This screams vacuum leak to me.

964 or 993? which obd?

The info is out there, google "964 OBD" or "993 OBD"

Also found this:
http://forums.pelicanparts.com/porsche-964-993-technical-forum/299885-diy-diagnostic-reader-obd1-cars-964-early-993-a.html

964 so ODB 1.

Vacuum leak....well I am looking into that as well. I had one and fixed it.....and nothing changed. I have even sprayed around the engine bay with brake clean to see if I have one (old school hot rodder technique) and nothing seems to change. I do not disagree though....just thinking a hammer would really help narrow my search.

I did search, and did not see that. I also believe it would not be that hard to connect it straight to a Hammer, with the traditional OBDI connector. I searched here and Rennlist, and while I found some info, nothing seemed to be concrete. I would think, but now, someone would have posted a how to with pictures etc. LOL

http://forums.pelicanparts.com/porsche-911-technical-forum/550452-how-add-obd-plug-3-6-transplant.html

http://forums.pelicanparts.com/porsche-911-technical-forum/150218-how-use-obdii-diagnostic-port-3-6-transplant.html

Clorinated brakekleen through an engine produces phosgene gas. Have fun. Same as welding around it.