ok guys i found the n75 ,is attached to the instake hose..well when i attach the vacuum hose coming from wastegaach and turbo i wont get any boost ...right now the n75 its disconnect it and the vacuums too and i have boost 0.6 bar

 

Can you explain that one again?



The N75 will have a harness(wires cable) connected to it and have 3 nipples(different lengths) on it. If there is no N75 valve in the car then there is your problem because without one the ECU will basically put the car into a limp mode(very low boost).

Are you saying you connected the 2 vac lines together?

 

ok guys when i plug the vacuum lines to n75 i only get 2psi if i unplugged them i get 0.6 bar

 

when the lines from turbo and wastegate r connect it to n75 i have no boost and when i unplugged them i get 0.6....
i check for shaft play and no shaftplay also theres oil residue inside intake

 

am thinking the n75 put the car on limp mode ,cause when the lines r connect it no boost at all ......how do i fix this ....thanks for the help

 

I don't mean to be rude, but could you please try to write your posts more...legibly. When you do not use punctuation and "dis" and "dat", it makes it very hard for us to understand what you are trying to tell us. If you are running a boost controller and your N75 is plugged into your intake, this is a recommendation on how to run it.
1. Loop your N75. What I mean by that is take a piece of vacuum line and connect the
two nipples on the n75 with that vacuum line, making a "loop".
2. Attach a piece of vacuum line to your waste gate.
3. Attach a piece of vacuum line to your turbo
4. Connect those two vacuum lines with the wastegate. Ensure that your wastegate is
flowing the air in the right direction. Most wastegates have an arrow pointing the
direction.
5. Adjust the wastegate to desired psi. If you do NOT have a chip or diode mod, then
do not go above 12 psi. Reason being is that you will run the risk of putting your car
in "limp" mod which is basically a safe mode for your car and defaults you to about 3
psi.
I hope this can clear up any questions you have about how your MBC should be hooked up. There are other ways to run it but this is the way I have mine and it works just fine for me so hopefully it will do the same for you.

 

thanks for your help but can u please explain this better
4. Connect those two vacuum lines with the wastegate. Ensure that your wastegate is
flowing the air in the right direction. Most wastegates have an arrow pointing the
direction.

you are saying for me to put a vacuum on turbo and another one to wastegate ,then you said for me to run those two lines to wastegate ,i dont get it

 

or you meant for me to attach those two lines to boost controller

 

Attach the line from the turbo housing and the line from the wg actuator to the boost controller.

 

thats how it is right now .im pushing 0.6 bar .
i also noticed that when i floor it like the boost takes forever to go up..
i had a s13 with a rb25 before and the boost would go up really quick
i also hear a psssssssss sound on driver side of the motor when im driving