I Have A 1997 Plymouth Voyager, I Smell Gas In The Front Of The Vehicle. I Was Told The Fuel Sending Unit Was Cracked And Need To Be Replaced. I Was Told By Someone Else This Vehicle Doesn't Have A Fuel Sending Unit It Has A Fuel Pressure Regulator. Is The Fuel Sending Unit And The Fuel Pressure Regulator One In The Same And Just Called Two Different Names Or Are They Two Different Things?