I have a 2005 Corolla with 140,000 miles. Recently the engine ran very rough then quite; it will start (after a lot of effort on the starter) then the RPMs will increase to about 6,000 then the engine will stop. I purchased a code reader which indicated the #1 fuel injector was bad so I replaced that and the spark plugs - problem still there. I checked the fuel injector resistance and they were all within about .1 ohm (11.2) so that is not the problem. All four of the ignition coils are delivering spark so that is not the problem. I want to do a fuel pressure test but there is no place to connect the fuel pressure gage. I' thinking the fuel filter needs replaced but the filter is part of the fuel pump and the pump model will have to be replaced that contains the filter.
Is there a way to check the fuel pressure or does anyone have any other ideas what could cause this problem? I don't want to get into replacing parts (expensive) w/o knowing what the problem is.
Thanks for any help.