Well, per an email I got from Bill, it was suggested that I could monitor the voltage from the access port directly rather than use a scan tool (why didn't I think of that myself?!). He said he'd get me instructions on what to do, but I know he's busy, and I know electronics enough to just go do it.
So I went ahead and made measurements of both my stock (good working) FICM and my PHP tuned FICM which is giving me some issues. I attached a link to a PDF documenting what I did for reference, should it help anyone else out. I used long enough test lead wire to let me sit in the truck and rev the engine during testing also. As a side note, if any of you want to go testing your FICMs, be very careful, I don't want to hear anyone say they smoked and broke their modules because of me
Long story short, the DC output on both of my FICMs is right at 48+ volts, so it doesn't appear that the FICM is suffering a slow death from the power supply side. It could be a problem on the driver board side, but I wouldn't think that would tend to clear up as the truck warms up, which still leaves me thinking there is some software strategy conflict that may be resolved by another software load.
Still hoping to hear from Bill any further suggestions or if he has any ideas on software conflict possibility. If anyone has any suggestions to the attached PDF let me know, or if anyone finds the attachment useful for future reference, feel free to use it or make it a sticky here on this forum.
The PDF is a 2.3MB file, so I linked to it.
Link:
http://www.mediafire.com/?sharekey=a...4e75f6e8ebb871
Thanks
Eric