1999 2.2 Hard Start

Truck will not start unless accelerator in all the way on the floor. Replaced fuel pump(when this started). Replaced fuel regulator and filter. Good steady pressure. Replaced spark plugs and checked all fuses and relays. Also checked that the security system was not the problem.Also changed EVAP purge valve. When I can get it started it seems to run fine. I’m at a loss at what to check next.