2005 subaru sti boost leak??

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SeanZ

New member

• May 12, 2014

• #1

Ok guys so I had previous threads of me claiming I had a slipping clutch or not enough vacuume since the hose cut open, well I patched the hose so thats good and my clutch is still good so its not either of those 2, now I have no clue what else it could be... Maybe a boost leak? Idk, I dont see any loose clamps or anything. Well heres a video of how my car runs when im pushing it.

https://www.youtube.com/watch?v=_VlGjTjqPSQ

 

Alin

Diehard Car Enthusiast!

• May 12, 2014

• #2

Holy crap! Is there any way you can monitor your boost? Your speed barely increases with the RPM climbing its way up to redline... You're flooring it, right?

Really odd...

 

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SeanZ

New member

• May 12, 2014

• #3

Alin said:

Holy crap! Is there any way you can monitor your boost? Your speed barely increases with the RPM climbing its way up to redline... You're flooring it, right?

Really odd...

Click to expand...

Yes flooring it and i had a air leak on the crank case vacume hose and fixed it without resetting the battery, I now resetted it

 

black bandit

• May 12, 2014

• #4

You definitely need to get us a log. You essentially have a naturally aspirated sti. Looks like you had absolutely no boost.

We need an entire list of mods and pics of engine bay.

 

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SeanZ

New member

• May 12, 2014

• #5

List of mods, 65mm aps intake and hks catback exhaust, no tune

 

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SeanZ

New member

• May 12, 2014

• #6

My engine bay

 

Spamby

Meat Product Toy

• May 12, 2014

• #7

Turbo going out?
Really need to log it. It's going to be hard for any of us to tell.
You just might have to take it to someone if you can't log it.

 

Alter3go

New member

• May 12, 2014

• #8

Do u have a boost gauge? AP?

 

Alin

Diehard Car Enthusiast!

• May 12, 2014

• #9

Let's see what happened to my car:

-torn y-pipe coupler from turbo to tmic
-torn turbo inlet from intake to turbo

But, looking at the picture, that engine bay looks pretty damn new/low mileage.

Something would have to be disconnected in order to not get any boost at all... Even if the turbo had the infamous wastegate crack, he would have something. What do you guys mean when you say "the turbo is going out"? Do you mean something along the lines of complete impediment???

 

HolyCrapItsFast

Drinks beer!

• May 12, 2014

• #10

My first suggestion would be to have a boost leak test done. I really can't hear anything well in the video but you might be at waste gate pressure only which indicates other problems. As suggested, a log would be helpful if you have the ability to take one. Do you have an AccessPort?

 

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SeanZ

New member

• May 12, 2014

• #11

HolyCrapItsFast said:

My first suggestion would be to have a boost leak test done. I really can't hear anything well in the video but you might be at waste gate pressure only which indicates other problems. As suggested, a log would be helpful if you have the ability to take one. Do you have an AccessPort?

Click to expand...

no accessport

 

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SeanZ

New member

• May 12, 2014

• #12

I dont think the turbo is going out, it just got rebuilt 3300 miles ago

 

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SeanZ

New member

• May 12, 2014

• #13

Whats a log?

 

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SeanZ

New member

• May 12, 2014

• #14

Do you guys know anyone in washington state who can check this out for me?

 

Alin

Diehard Car Enthusiast!

• May 12, 2014

• #15

http://igotasti.com/vBforum/membermap.php

There are a few members over there.

Can you take a few more, clear pictures of the engine bay?

 

HolyCrapItsFast

Drinks beer!

• May 12, 2014

• #16

Get a can of carb cleaner and spray it around all the hoses and turbo couplings while the engine is idling. Listen for changes in idle while you spray. This might reveal a leak that you can't see.

Beyond that there may not be much we can do to help with out seeing a log. That would tell us quite allot about the cause and the underlying issue. If you can't find any leaks then you need to take it somewhere and have a boost leak test performed. Usually a local speed shop or the dealer may offer this test.

It would also do you well to think about getting a couple gauges. I suggest a good boost gauge, a wide band AFR gauge and oil pressure.

 

Spamby

Meat Product Toy

• May 12, 2014

• #17

SeanZ said:

Whats a log?

Click to expand...

Logging is taking certain and selected data from the ECU while you are driving. This data can reveal issues that your having with the car. You can monitor or see parameters from your ECU.