Trouble codes P0108 P0193 P0453?

I'm getting codes p0108 p0193 p0453. I've replaced the entire fuel system both fuel pumps injectors fuel line fuel rail pressure sensor map sensor purge valve sensor OVT VVT crankshaft sensor alternator starter new battery also the vent valve near the charcoal canister all replaced in the last year also ignition coils and spark plugs and parts are mostly from rock auto. It's not the ECM that's been tested and cleared I've tested every ground I could find and they all tested fine I can't figure this out and would love to have your input. The car starts and it sounds fairly smooth for a minute and then it just kind of chokes out and stalls now it'll start right back up and do the same thing sometimes it'll run for a minute or two but it doesn't sound great and the fuel real pressure when I check the live data is always I think 2889.1 so very very high and like I said I replaced the high pressure fuel pump the low pressure fuel pump and the fuel reel pressure sensor along with all four injectors I checked all the sensors going to the ECM and they all have continuity I've looked at the wiring I can't find anything there I think that is all the information I'll send another message if there's anything else I can think of but the car's been down like 6 months now and as I get money I'm putting it into it trying to figure this out.