2G P1105 code after several warm starts

[Spades]

I get a P1105 code (FPS) after several warm starts. Example...If Im driving and car gets fully warm, i shut it off to get gas, and then pick up my son at school, shut it off while i wait. Restart and i get a P1105. But if i start it up cold and just go to work and restart it up 8 hours later (cold) to go home, everything is fine and never a CEL. I can go on for months with no CEL if i dont have several warm restarts. There is a pattern of warm restarts that causes the CEL on my car... Any ideas?

 

[emeracing]

Could be a fault fuel pressure solenoid or your wiring.