I have a couple questions...

1) How do you find the exact PCM model.
2) Has anyone been able to read a 94 3.4L PCM?

I made a cable to read the data off the pcm, everything seems to "work", but unfortunatley I cant get any existing software to read properly. Ive tried EFILive and FreeScan. If I use a terminal program, reading at 8192, I get data...unfortunatley, none of the protocol definitions (eg. A257) I have found match up to the data I get.

I do know Im getting positive feadback from the PCM, however. If I sit with the terminal running, ignition in run (not started), I get tons of 00 (hex). As soon as I turn the heater on, it goes crazy.

No one seems to know what to do, and neither do I....unless I start hardcore hacking.... Any help here?