I replaced the spark plugs, but the car still does not want to start like it use to. Has new airfilter also. You never use to have to touch the gas pedal before turning the key, now the only way it seems to start right up is if you touch the pedal once and then turn it over. Maybe Mapp sensor? How do I tell? Any other suggestions????

how many miles? have you ever checked the fuel filter?

80,000 Miles, replaced fuel filter already. Going to end up bringing it in to be put on scope I guess.

I would check the fuel pump.

Was the fuel pressure regulator, Now runs fine.