So I got the first boards back from OSH Park:
And finally in the small ABS plastic enclosure:
At this point I decided to do a little more with my decoder and add:
1. LED display for decoding FI codes without a computer
2. Water temp decoding on LED display
3. Plug-n-play. No more cutting & soldering your wiring harness in order to connect.
All this while keeping the same form factor of a small 2.4″ X 2.27″ X 1.0″ box: