Hmm I am very tempted to say try another ECM..
There are instances where part of the crank sensor can fail and the car will still start and run, it will fire all 6 injectors... and the other failure will leave you dead in the water..
The Cam sensor is merely used for the #1 TDC reference so that the PCM will run in True Sequential Fuel Injection...
Being that #2 is the only one not firing it would seem to me that the rules out a crank sensor failure.. The PCM seems like the most likely culprit....
always hard to say 100% for sure tho... Might be worth a shot tho, it seems you have ruled everything else out..
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