BBKwhore

While trying to figure out whats up w/ my car I found this part w/ the vacuum unplugged. If I remember right it went to the back of my manifold, but when I removed my egr I just capped both the vac lines up. So I just capped this one off today as well.



Thanks Guys

93 LX FiveO

Fuel Pressure Regulator

put it back on

vaccum helps create fuel pressure

otherwise risk running very lean

BBKwhore

K, thanks man. I thought it was just part of the egr system. Do you know which vacuum line it goes too? If I remember right it was left one. God, I do some stupid **** sometimes.

Again, thanks bro

Richter12x2

As long as the source is really vacuum, it'll all be relatively constant on that side of the throttle body. So plug it into the closest and/or best looking vacuum port available.

uedlose

with the vac. line off it will make it have more fuel press. not less. as far as where to get it find a place that has vac. all the time and hook it up check the back of the upper intake thats where most get it.

BBKwhore

I unplugged it from the back of the upper manifold. Theres two vac ports back there. I just plugged it into the left one (closest to passenger side).

Thanks

302f150

It has a diaphragm in it, when you have no vacuum it thinks your at full throttle all the time, so it jacks up the fuel pressure. Just find a constant vacuum source and plug it up, the EGR valvehas a line that runs to a plug on the passenger fenderwell.

BBKwhore

Got it plugged back in guys.

Now, new questions. Does anybody know where I could locate a vac line that feeds to all cylinders? I wanna pour some seafoam through my motor to try and clean out any carbon buildup since I removed my smog system.

Thanks,
Cody

Richter12x2

Brake booster vac line, and pour SLOWLY or you'll kill it, and it's hard to start full of Seafoam.

BBKwhore

ok, so the semi-large one running to the vac tree? looks like I'll have to have a hand w/ this one. Don't want to pour everywhere.

Thanks man