Help Starting issue and cant find the answer online

[gnvarnadore]

Ok so i have a 89 240sx with the stock KA24E and here's the problem im having.
I try to start the car and it wont start, I can smell gas and i know im getting spark and I cleaned my MAF when i got the car which was about 3 months ago.(need air,fuel,and spark i know).
I can pull the fuel pump fuse turn the key and it will fire up and then i rush around to throw the fuse back in and it runs. I cant for the life of me figure out if its my FRP, injectors, or something else that is causing the problems. This doesnt happen all the time but is happening more and more often so i need to fix this asap. Im lost so any help would be great.