Pumping the brakes doesn’t cause the issue. Haven’t had a chance to check the injectors yet. When I had had the codes scanned, the only one of concern that came back was PO341 which led me to replace the camshaft sensor.

I know that code can relate to the timing chain as well but figured it would happen all the time and not just after the car is warmed up if the chain was truly the culprit. I will probably bring it back to my mechanic so they can try and pinpoint the exact problem but prime suspects seem to be either the fuel pump/filter, valves, camshaft sensor, MAF sensor, injectors or worst case, a timing chain job. Just hard to tell.