Having problems with my 98 civic dx. I am going to give as much info as i can about situation for hopefully a good answer...my car started running rough blowing out smile when started in cold weather

Reaked of fuel then car cut off wouldnt start replaced fuel pump
filter and screen still wouldnt start. than i got her to start about four
Days later and and the next day it wouldnt start four Days later it
started again so i took it to advance threw a intake barometric
pressure code so replaced the MAP sensor now it starts everytime.
But the bad news is if i drive It and come to a stop It stalls. It will
start with a rough idle then die again when i put it in gear. its also
fouling out my plugs. which plugs and wires only few month old idk
need to get this car going again asap....so  then pulled the plug the
temp of the plugs got cooler as it got further away from distributor
an the fouling got worse from plug one to four(closest plug to the
distributor is the hottest for this plug the coolest)...any ideas?