Hey guys I'm going to make this clear and simple. It's been a long time and I still can't find the reason why this is happening. I need help from the guys with more experience in the subject because I think i'm missing something. Here is the deal:

I can hook up my pressure tester (8-12 psi) EVERYWHERE in the system BUT from the intake pipe and I get NO leaks whatsoever.

I know for a fact that when you pressure test the system starting from the intake pipe you have to disconnet and plug the hoses from the VC to the intake pipe and from the stock recirculation valve to the pipe. When I do this I always hear a leak coming from either the carbon canister or the brake booster. I've disconnected and pluged the hoses on the canister and brake booster and I still hear a leak.

I need someone to tell me where else could it be coming from and why does it only happen when I pressure test from the intake pipe.

Have you used a Soap and water and spray it where you think it's coming from? and what is your Vac reading on Idle

Nope no soap and water yet. Vaccum reading reads as usual 16-19 psi

Are you talking the intake pipe at the throttle body or the intake pipe at the turbo?

Is is a highport or low?

Mike

Turbo. Highport Avenir.

I second the soap and water.
This may be how you are doing this (if your intake is open turbo), but I have always pressurised from the turbo itself with a silicon coupling, as you don't really need to check the intake pipe.

retard, do the soap and water first...... sigh newb jorge fag....

jk yeah do the easy stuff first buddy, G/L

You need to block your intake pipe off and any vacuum lines on the IC piping going to the intake manifold. The air can leak through the valves.

I block off everysingle thing attached to the intake pipe. I just don't really understand why it leaks when I pressurize through the intake pipe ONLY and not when I apply the pressure starting from the hot piping. They only thing in between is the turbo and I know for a fact that it doesn't leak because I already tested that by itself. Either way I will apply soap to see where it's coming from.

Ohh and BTW I have the hotshot aluminun intake pipe.

I found the leak and its located in the Carbon canister ( I think that is the name). Is that black bottle looking thing under the brake booster. It's leaking right under where the 2 hoses that go the intake manifold attach to.

Still a myth that it only leaks when I apply pressure from the inlet/intake pipe (with everything capped off ) . It doesn't leak when I apply pressure starting right after the turbo outlet pipe.

The carbon canister lines should have check valves on them so the canister itself doesn't see boost.

Mike

Still a myth that it only leaks when I apply pressure from the inlet/intake pipe (with everything capped off ) . It doesn't leak when I apply pressure starting right after the turbo outlet pipe.

Is your waste gate reference coming off of the compressor housing and maybe T-ed back to other vacuum lines?

Is your waste gate reference coming off of the compressor housing and maybe T-ed back to other vacuum lines?

Naw the only T's that I have are coming off the vaccum line for the fuel pressure regulator which one goes to my boost gauge and the other one to my boost controller.

I didn't think that your intake piping sees boost... only vacuum, I didn't think you needed to pressure test it, unless your worried about it sucking unmetered air in...

I didn't think that your intake piping sees boost... only vacuum, I didn't think you needed to pressure test it, unless your worried about it sucking unmetered air in...

Yeah, that is the reason why I like to check it. Just to make sure I'm not sucking unmetered air plus it doesn't leak at all around that area is just the carbon canister.

I capped off the the hoses going to the canister and the car drives the same. Now I was hoping that this was going to solve my problem with my car boosting over 11lbs when its supposed to be running stock boost.

I see, i understand now... thats a good idea.

I don't think the intake is the problem though... if your pipes are fine and hold pressure, seems to me the culprit would lie on the wastegate. can you hook the compressor up to a gauge and then to the wastegate line. I would say (if possibly) pressurize it slowly and see if the actuator opens when 7 psi is reached... shot in the dark.

When you pressurize the pipes alltogether (post intake) did you see the wastegate open?

Btw, what is your setup? external/internal wastegate? turbo? stock actuator?

not running a boost controller either?

No I didn't actually look for the wastegate to open but I did apply pressure to the wastegate before I installed the turbo and it did open with no leaks.

I'm running internal wastegate. The setup is T28/GTIR manifold/GTIR wastegate actuator.

I do have a boost controller (AVCR) all wired and ready to go but I don't want to install it until I find out why the car is overboosting. The controller is already tuned and setup for 7-8 psi in gear dependant mode.