Run vacuum from intake to fuel reg on 98 fuelrail?
#1
Banned
Thread Starter
Join Date: Sep 2002
Location: So Cal, CA
Posts: 1,298
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I suspect i have my vacuum lines hooked wrong.
I have a 98 Fuel rail with the Feed and Return line on it.
The fuel pressure regulator has a port on it for vacuum. I ran a vacuum line from the front of the intake manifold (right behind the throttlebody) to this port on it.
Is this the correct place to hook it up?
I have a 98 Fuel rail with the Feed and Return line on it.
The fuel pressure regulator has a port on it for vacuum. I ran a vacuum line from the front of the intake manifold (right behind the throttlebody) to this port on it.
Is this the correct place to hook it up?
#3
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
The 97-98 fuel rails have a regulator that does not use manifold vacuum. On stock applications the tube that is on the regulator is routed in front of the radiator and is vented to atmosphere only. Do not run manifold vacuum to this. I'm sure this might cure some weird performance issues.
#5
Banned
Thread Starter
Join Date: Sep 2002
Location: So Cal, CA
Posts: 1,298
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Ok guys, sorry im kinda confused, I wanna make sure i got this right.
With my 97-98 Corvette Fuel Rail (feed fuel line and return fuel line). Where should i run the vacuum line on the regulator?
Should it run to
1) Manifold vacuum
2) Between MAF and throttle body
3) No vacuum line at all
With my 97-98 Corvette Fuel Rail (feed fuel line and return fuel line). Where should i run the vacuum line on the regulator?
Should it run to
1) Manifold vacuum
2) Between MAF and throttle body
3) No vacuum line at all