where is fuel pressure regulator on a 2004 chrysler town and county 3.8l v6

What is your question?

just changed fuel pump, and coil pack engine struggles to start unless i gave it gas then it ran violently and smoked and i had to hold gas down the entire time around 1500 rpm. died when i let off gas. i was told it could be ignition positioning sensor. the day it happened i was sitting in the turn lane and a uhaul van drove past me and splashed the front of my van really bad. pulled into the gas station and shut it off. came out five mins later cranked it up and sat for a min and all of a sudden the van goes into convulsions and im thinking its not going to get me home. so i get home and have to leave again and drive it for a few hours and come home. the van got splashed on friday and i drive it for a few hours saturday. but sunday i drove it to a u pull it place and took the interstate and every now and then the motor would run worse and check engine light would flash well it got worse on way home, got it to driveway and shut it off and didnt crank again til i chaned fuel pump 2day

What makes this problem better or worse?

holding gas will start motor

How long has your 2004 Chrysler Town & Country had this problem?

three weeks