2009 Fit 96K

Loved my fit until 3-4 weeks ago Has a mind of it's own. Only goes 15-18mph at 3000rpm
Scanner said misfire cyl 2
fixed that...Replaced coil pack Ran ok for a week or so
died again
replaced all 4 coil packs and plugs
Code says PO001....fuel volume pressure regulator. Very common code on a number of vehicles. Want to make sure that other Fit owners have had this issue or the electrical connector to it. Occasionally the car smells like gas Seems like an electrical or fuel mapping issue. Runs fine when it feels like it. Checked cat convertor....no code
EGR? injectors? no corresponding codes. Any help is appreciated