Sorry, it just sounded to me like your basic question was "what makes my engine stall sometime?
" and I just don't know how to react to that...
I mean, it could be anything
Let me try and help (I'll
Ever see a CEL light?
Do you have any tuning on your truck?
Do you ever feel a "skip" or miss?
Otherwise runs strong?
Starts right-up in the morning?
Does it do this more hot or cold?
What year is your truck?
How many miles?
Hi Pressure Oil control system all original (ICP - IPR)?
How does the IPR solenoid look (plug & wire intact, tin nut on tight)?
Does it restart easily after it stalls?
Do you have a spare CPS to try?
How are you going to scan the PCM? What are you going to use (you know you can't just use any ole' OBD-II scanner)? If you have access to the right tool, monitor the ICP pressure and the IPR%, maybe do a buzz test, as well as scan for code history.
I wish I could just "tap" the hood with my fist and make it right (the way Fonzie does) but sometimes it takes more than that