whats wrong with my vacum lines and why dont i see any boost?

[eyebrowski]

heres a pic of how i have my vacum lines set up on my 90', i have taken out all the unecessary stuff but i am not seeing any boost on my guage and i dont know why, the car is running fine. anyone see anything wrong with the diagram? thanks

 

[onegee]

dude u got it wrong bro...go look at

taboospeedshop.com

look under the emmisions thing

and read what they have...since urs is a 90 like mine, just pretend that the 2 on the side are on the top..also i dont see a line going to the blow off valve..

if anything, cap off everything on the TB. next have the one line from the intake manifold to the blow off valve. w/ that line tap in a boost controller and from the boost controller into the wastegate.

now as far as the right side, dont take anything off the FP solenoid, but the evap. solenoid take everything off. hope u figure it out. pz

 

[onegee]

btw, u probably aren't seeing boost if no line is going into the wastegate ..pz

 

[eyebrowski]

sorry, i left out all the trubo vacs...they are in place. so cap off everything on the TB then the top vac line on the fp solenoid should run to the fp reg and the bottom vac line should run to the intake manifold. then i tap the intake manni to fp reg vac line for the boost gauge, coorect?

 

[onegee]

have nothing running down into the intake manifold...meaning underneath..take all that off..be careful not to hit the plug that goes into the coilpack area..i did and my car wouldn't start until i fooled with it...thought i broke something....anyway..

yup, nothing on the TB..u got it mang...if u have more trouble i can take pix of my setup when i get back on the end of the month..pz

 

[nine5raptor]

Originally posted by onegee
btw, u probably aren't seeing boost if no line is going into the wastegate ..pz

If you mean no pressure source connected to the wg actuator, then he would be seeing 30+

 

[steve]

Originally posted by eyebrowski
So cap off everything on the TB. Then the top vac line on the fp solenoid should run to the fp reg and the bottom vac line should run to the intake manifold. Tap the intake manni to fp reg vac line for the boost gauge, coorect?

Yep, that sounds right. The other manifold line then runs to the BOV and you can either use the turbo pressure outlet or the BOV line for the boost controller, though some aftermarket BOV don't seem to like sharing the line with a MBC so I always use a turbo tap for the MBC.

Steve

 

[Defiant]

 

[eyebrowski]

yup thats what i was thinking. thanks for the help.

 

[onegee]

"If you mean no pressure source connected to the wg actuator, then he would be seeing 30+"


err..my bad..haha..hey it was late... =P ..pz

 

[99 gst 420a dsm]

this is a lil off topic, but dont use silicon vaculm lines on a turbo car, omfg they suck, all of the collaps and its crap, i thought they were more durable and all that, but they are to weak, it wont read boost or vacum for $H!T... ask turbonium if u need more info on that....