So I have been fighting an issue after say a drive, if you pull the gas cap loose while the engine is still idling, itll pretty much flood itself and die. I can get a log of that shortly. I do have a log of a warm start which seems to be the same issue. It will flood itself and die. I am thinking it has to do with EVAP but not quite sure. The HPT PID doesnt read tank pressure correctly but I double checked with a Snapon Scanner and the voltage matches. It already has a new purge valve, vent valve, and a charcoal canister (all ACDelco also).
Im open to any more tests or ideas. I know Greg H advised to put an orfice into the purge solenoid. I might have to, but but figured Id start a new thread on this.
I find it odd if there was an issue with the EVAP system, no faults are active.