Can't raise boost level..

[TSIHero]

Okay I got my TurboXS unit hooked up correctly (I think) and still can't raise the boost past 6.7ish hkPa.

Here's exactly how I have it hooked up:

Removed the vaccum line that runs to the BCS.
Removed the vaccum line that runs from the bottom of the intake to the BCS. Capped the intake nipple.
BCS has no lines running from it, I just removed all the hoses from it.
Capped off the nipple that runs into the turbo.

That leaves the wastegate nipple left.
Nipple from bottom of wastegate run to bottom of BC.

Cut the vaccum line on the BOV and put a T there.
Running vaccum line from that to the side of the boost controller.

Fired up the car. The boost controller is dumping air out the top of it where the screw is. Not sure if this is normal but anyways.

No matter where I adjust the screw nothing happens.

Car is stock 95 TSI with free mods. I followed the instructions on turboxs's website.
Link found here: http://www.turboxs.com/eclipse gen 2 boost controller help.htm

Is there something I did wrong? On turboXS's website it says you must disconnect the stock BCS unit. But I have no idea how to disconnect it OR if it needs disconnected.

Someone hit me back.

 

[oldman]

Okay I got my TurboXS unit hooked up correctly (I think) and still can't raise the boost past 6.7ish hkPa.

Here's exactly how I have it hooked up:

Removed the vaccum line that runs to the BCS.
Removed the vaccum line that runs from the bottom of the intake to the BCS. Capped the intake nipple.
BCS has no lines running from it, I just removed all the hoses from it.
Capped off the nipple that runs into the turbo.

That leaves the wastegate nipple left.
Nipple from bottom of wastegate run to bottom of BC.

Cut the vaccum line on the BOV and put a T there.
Running vaccum line from that to the side of the boost controller.

Fired up the car. The boost controller is dumping air out the top of it where the screw is. Not sure if this is normal but anyways.

No matter where I adjust the screw nothing happens.

Car is stock 95 TSI with free mods. I followed the instructions on turboxs's website.
Link found here: http://www.turboxs.com/eclipse gen 2 boost controller help.htm

Is there something I did wrong? On turboXS's website it says you must disconnect the stock BCS unit. But I have no idea how to disconnect it OR if it needs disconnected.

Someone hit me back.

You have the lines reversed. The TurboXS mbc is a bleeder type mbc, the pressure source goes to the bottom fitting (T fitting) and the actuator goes to the fitting inline but opposite to the adjustment knob.

 

[TSIHero]

Connect the remaining end of the "T" to a vacuum hose. Connect the silver nipple on the side of the boost controller to this vacuum hose.

4. Connect a vacuum hose from the blue nipple on the bottom of the boost controller to the waste gate actuator.

----------------

^From TurboXS website.

It's saying

Basically the silver nipple(mine is gold) goes to the BOV's vacuum line.
Connect the blue nipple, which is on the bottom (opposite of screw) to the wastegate nipple.

And you're saying my lines are reversed? I should have the side connected to the wastegate and the bottom to the BOV line?

I tried that out just incase I had it backwards and all it did was Hiss twice as loud and toss twice as much air out.

No matter where I change the screw nothing happens. It now has a max boost of 5.3 hkPa. Won't go any higher then that. so I assume thats incorrect.

Any ideas?

Actually, after rereading your post I think you just had my words confused. I you hold the unit straight up and down screw on top..

Its like a sideways T. I had the wastegate going to the bottom and the bov line going to the side just like the website says.

 

[mitsuclipsegsx]

i had the same probelm w/ my 1st gsx when i had the turbo xs the probelm is you cant use a t-line, hook it up like this:


http://dsmtuners.com/forums/showthread.php?t=144821


2nd pic

 

[TSIHero]

Here's a picture of my engine..

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You can see I have the T fitting coming down to the "T" side and the bottom going right into the wastegate nipple.

The turbo housing vaccum line I just plugged up.
The stock BCS is sitting there with no lines on it.. still plugged in.
The bottom nipple on the snokal I plugged up and removed that line.

Lines are hooked up correctly - and still moving the screw isn't doing a damn thing.

 

[mitsuclipsegsx]

Here's a picture of my engine..

You must be logged in to view this image or video.

You can see I have the T fitting coming down to the "T" side and the bottom going right into the wastegate nipple.

The turbo housing vaccum line I just plugged up.
The stock BCS is sitting there with no lines on it.. still plugged in.
The bottom nipple on the snokal I plugged up and removed that line.

Lines are hooked up correctly - and still moving the screw isn't doing a damn thing.

turbo xs told me not to use the t line,only like i have in the pic above, and it worked perfect

 

[TSIHero]

You said that was on a 1G though. Which is setup differently right?

How should I hook it up then?

 

[mitsuclipsegsx]

You said that was on a 1G though. Which is setup differently right?

How should I hook it up then?

I said 2g..

 

[TSIHero]

Oh.

Well what should I change then?

 

[TSIHero]

Should I connect the vaccum line from the turbo housing to replace the BOV line?

 

[oldman]

Damn, a lot had happened since I left work. The picture you shown is correct, after reading your original post sounded like you had it reversed.

Did you buy the mbc used? Many seem to have problems with the TurboXS mbc. I personally don't like it because it's a bleeder type valve, it controls boost by creating a boost leak to change the pressure that the actuator actually sees. On the other hand, a ball and spring type blocks the pressure source to the actuator until the desired boost level is reached. I suggest bypassing the mbc all together by connecting the T vacuum hose from the BOV directly to the actuator then do a test run. If you're able to boost 10-12psi solidly, you have a defective mbc. If problem persists, you either have a exhaust leak/crack before o2 housing, actuator arm off, defective actuator or a major boost leak. Good luck.

 

[TSIHero]

I tried both methods..

hooking it right up to the turbo housing, did nothing.

Then I tried what you said and ran a vaccum line right from the BOV "T" right to the wastegate nipple (bottom of wastegate)

and all I generated was around .58 hkPa doing it that way.

My vacuum at idle is around .60, .50 all the way down to .40 when in gear

 

[oldman]

I'm not familiar with hkPA, can you convert them to psi?

 

[TSIHero]

1 hkPa = 14.5 psi

Basically if I run a line from the bov hose to the waste gate I peak at 8 pounds of boost.

If I run a line to the turboxs unit I run around 10 pounds of boost.

I was running about 13 pounds of boost when my timing belt was off time. I'm not sure if something jacked up but for some reason I lost alot of boost pressure and can't get above 10 now.

 

[oldman]

In that case, the actuator is doing it's job and the mbc isn't. Some how it's not bleeding off enough air or too much air which creats a big boost leak. Of course it can always be the turbo itself as well. To rule the turbo out, leave the actuator nipple open and cap off the T off the BOV. Doing this will result in all out boost so make sure you let off the throttle once you get pass 16psi. If in fact you get all out boost then you can be 100% sure that the mbc is the problem.

 

[TSIHero]

I just unplugged the hose from the wastegate and plugged up the bov line.

Ran the SAME Boost 6.7 hkpa at WOT.

Also question, I got the vacuum hose from the turbo housing blocked off. This is correct?
Also have the nipple on the intake (bottom) blocked off.

Perhaps its my wastegate not working?

 

[oldman]

Also question, I got the vacuum hose from the turbo housing blocked off. This is correct?

That would be correct.

I just unplugged the hose from the wastegate and plugged up the bov line.

Ran the SAME Boost 6.7 hkpa at WOT.


Perhaps its my wastegate not working?

If problem persists, you either have a exhaust leak/crack before o2 housing, actuator arm off, defective actuator or a major boost leak. Good luck.

or a dying turbo. Good luck.