OK, coupla things...
First the 340. Are you "
Clearing All Codes" after you read them? Could this be a old code from the first CPS?
Next, the 1280/1211/1209 ICP codes. You want to be sure to clear those too. Sometimes excessive cranking/NoStart can cause that. You want your codes to be "fresh"
The ICP pressure you show is good.
I don't see any real problems with your sensor readings. Yes, the IPR is a little high but certainly nothing that should prevent you from starting and, again, these are unusual circumstances at present.
Also, I just pulled the 302 relay on My '02 and found, but I think I misunderstanded the situation you had, just what you did. That is, the WTS light comes on (wo/GP operation) but it
stays ON, doesn't "
time-out" like a healthy PCM would. This might just be the cluster doing that. So, it's not significant as I thought it was.
So, let's Step-Back and look at what we know.
1) Somethings wrong with the CPS signal in either
getting to the PCM
or the PCM isn't able to handle it and sees "0" RPM (and won't ever start without it)
2) That WTS light, why does it short-cycle (accompanied w/NoStart)? What does it tell us about the state of the PCM? Could it be getting improper (low) Voltage? It's OK when you first turn the key but drops-out? Measure the voltage in the fusebox, maybe at the OBD-II port/CigLtr too. What about the Grounds? Look at the under dash ground straps & connections. Maybe the PCM itself is just Bad? (there's no test I know of where you could determine that without swapping it with a good one)
And lets say the RPM isn't being read from the CPS sensor because the PCM isn't capable of reading it because it's in a "confused" state. How then does it produce a code? (IF that code comes right back after clearing). Wouldn't the PCM be at a non functioning state, with the WTS acting like that, and not be able to recognize
anything? Including the lack of RPM?
As for the ICP, pressure should be "0" when first turning the key ON. The PCMs criteria for starting is around 500lbs (you've met that). You could always unplug the ICP, as a test, and the PCM will take over for it by setting a preset value for the IPR to run with (that
will set ICP codes so, expect to reclear those if you do) BUT, I think you've narrowed it down to the RPM as the No Start issue...