Fuel problem with s14 sr20

[getsideways147]

I have a fuel problem walbro 255 fuel pump pumps fir as long as you have key power it never stops where doni start car is running very rich it's a 95 s14 240sx

[di-devol]

Wow.

What?

[getsideways147]

Sorry was all over with that post . I have a 1995 240sx with a s14 notchtop sr20det. It has a walbro 255 fuel pump. The car runs but runs very very rich. I can smell gas when driving. Black smoke when you get above 4000 rpms. When you turn the key on the fuel pump runs for as l

[getsideways147]

Runs as long as the key is on. Never stops. Shy? Where do I start? Fuel pump relay? Fuel press. Reg. ? Wiring?

[Danger_Dorn]

It could be any of or combination of 3 issues, in order from severity...its either your fuel pressure regulator, fuel pump relay stuck on, or ecu telling the relay to pump too much.

[koukimuncher]

i got this same problem at times still does it more than usual now

[getsideways147]

So buy a 15$ relay dose it matter on the fpr to use?

[steve shadows]

No one is thinking injector o-rings here?

Always worth a check...

[getsideways147]

yep good idea I'll check them out in the morning

[getsideways147]

I pulled the fuel pump relay, pump stayed on. Pulled the fuel pump fuze, pump is still on. It's ran to 12v key power. Is that a problem? The fuel I smell I'm guessing a leak? Any input helps. Thanks