Ford Factory PATS works by withholding fuel injector pulse. PATS does NOT withhold power from from the fuel pump. So if the fuel pump does not prime, this is not a PATS problem.
NOTE! a no PCM power issue will at first glance appear to be a PATS problem. Remember that the cluster and PCM need to "talk" to each other to clear PATS. So if either the cluster or PCM isn't working, THEN it would be expected that PATS wouldn't "prove out".
PCM pin #97 is powered via fuse F2.2. Sooooooooooo if no power to PCM #97 means:
- Blown F2.2 fuse (or other blown fuse).
- CCRM "issue".
- bad ignition switch
- wiring or ground fault.
Considering the amount of work done the first thing I would recommend is checking the CCRM/PCM ground. This is a larger black wire with a white stripe that goes from the radiator core support around the battery. It connects to a larger round single pin connector. It's easier to find with the battery removed.
Double check all of the grounds around the radiator core support. Are they clean and tight?
Next Test for key on power to fuse F2.2, F2.8, F2.21, F2.34. The combination of which fuses with power and which don't provide clues where to focus next.
IF no power to fuse F2.34 focus on an ignition switch problem.
IF no power to fuse F2.2 and F2.8, focus on a CCRM "issue" including a bad CCRM ground. Additional test of the CCRM may be needed to narrow focus.
1999-2004 MY fuse panel schedule:
http://www.allfordmustangs.com/foru...r-swap-wont-fire-please-help.html#post2669271
1996+ Crank with no start check list
http://www.allfordmustangs.com/forums/4-6l-tech/336452-1997-mustang-wont-ignite.html#2984838