Acura Legend Gas Pedal

After Sitting For 3min. It Will Start And Ride Until Sit A Red Light Then Looses Power To The Pedal, Will Stay On But Not Move Pedal Revs...

I Start The Car It Cuts Off So I Have To Rev The Engine A Little. After Sitting For 20 Mins Once I Try To Take It Out If Park It Cuts Out...

When I Stop The Vehicle Normally It Stops, But If I Slowly Push Down The Pedal It Will Go Down To The Floor