Chrysler Repair: Concorde Fuel Pressure, gas pressure regulator, case count

Question
Hi Roland, i´m back here, i´m from MExico, my overheating problem was succesfully corrected by adding coolant to the system now the car runs perfectly. Now i have anotehr issue, the car wont accelerate properly i mean is lacking of power like if the car was going out of gasoline, i have to push the gas pedal several times so the car will keep accelerating, but if i push the gas pedal once first starts accelerating and then suddenly decreases the power and then i have to push it again and again. I have changed the gas pump for a new one, i have changed the spark plugs and the car still the same, also wen i want to turn it on i have to try it several times until the cars starts no matter if its a cold start or a hot start, could it be my gas pressure regulator?
Thanks

Answer
Hi Hector,
Could you  tell me what is the year/engine? We need to get the fault codes, if any, to diagnose the problem. Use the ignition key:"on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch for EITHER: the check engine light, which remains 'on', to begin to flash, pause, flash etc. in which case count the number of flashes before each pause. Then repeat to be sure of an accurate count of the flashes. Tell me the counts in the order of appearance.  OR: If that doesn't happen then instead watch the odometer window to see if the mileage changes to show some new 4-digit number preceded by a P. If so, tell me what those numbers are.
Roland