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Old 01-15-2012, 12:56 AM   #1
docNUCCA
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Member#: 242377
Join Date: Mar 2010
Chapter/Region: RMIC
Location: SLC, Utah
Vehicle:
2006 Legacy GT Wagon

Default Boost leak test needed

Suggestions for who can do a boost leak test for me?

Running a GM boost control solenoid and Turbo Smart manual boost controller in a "hybrid control" set-up on my LegacyGT.

Mpg is way down, car is running way lean (adding 20% fuel according to code that was read), Cylinder #2 misfire, coil pack was changed out, plug looked good and compression tested good. Car ran great for one afternoon and then sputters under boost, mpg way worse and CE light came back again, Cyl #2 misfire again

Who do you guys like for a boost leak test?

Thanks for the help.
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Old 01-15-2012, 01:00 AM   #2
WRX N EFX
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Chapter/Region: RMIC
Location: Provo Utah
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White

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Im having the same problem the car just has no juice under boost, it just starts misfiring when i get on it. I just got my boost leak done at solid auto.

P.S. keep me posted if you figure something out.
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Old 01-15-2012, 03:40 AM   #3
Eww Evo
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Quote:
Originally Posted by docNUCCA
Suggestions for who can do a boost leak test for me?

Running a GM boost control solenoid and Turbo Smart manual boost controller in a "hybrid control" set-up on my LegacyGT.

Mpg is way down, car is running way lean (adding 20% fuel according to code that was read), Cylinder #2 misfire, coil pack was changed out, plug looked good and compression tested good. Car ran great for one afternoon and then sputters under boost, mpg way worse and CE light came back again, Cyl #2 misfire again

Who do you guys like for a boost leak test?

Thanks for the help.
I built my own Boost leak tester and did the Job well.
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Old 01-15-2012, 04:26 AM   #4
rkl303
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Join Date: Feb 2008
Chapter/Region: RMIC
Location: Denver, CO
Vehicle:
2008 STI
OBP

Default

http://www.iwsti.com/forums/how-inst...ak-tester.html

Here's the link to a DIY. You could probably get away with just the


(1) 1/4" air reel lead in line
(1) 2" to 1/2" pvc reducer (threaded)
(1) 1/2" to 1/4" threaded reducer
(1) thread seal tape
1/4" male air line fittings

If you stole someones air compressor, as I believe they already have regulators on them. Otherwise harbor frieght is probably going to be the cheaper option for a regulator.
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Old 01-15-2012, 09:59 AM   #5
car_cursed
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More projects than
you can shake a stick at.

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It's really easy to do it yourself.
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Old 01-16-2012, 09:51 AM   #6
docNUCCA
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Default

what about the tip of having to pinch off all the other assorted lines?

I thought it was simply pull the afta-maf, insert tester and add line pressure..... to hear the leaks?

Also, what about the worry of pushing out cam seals?
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Old 01-16-2012, 10:05 AM   #7
bhhamblin
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There is 3-4 lines that come off the turbo inlet pipe that need to be pinched off. If you dont pinch them off you will fill the oil pan up with boost which in turn will make your dip stock pop out and spray oil all over it sucks.

You normally only pressurize the system to the amount of boost you are running in the car, so you shouldn't have an issue pushing out cam seals. Especially if you pinch or plug the lines off on the turbo inlet. Its nice to be able to test the system right after the turbo that way you don't have to plug all that stuff, but this really only works with fmic.
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Old 01-16-2012, 11:02 AM   #8
Eww Evo
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With TMIC pinch the lines as well on the turbo inlet? Or what would you recommend with TMIC?
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Old 01-18-2012, 07:09 PM   #9
subtech02
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are you sure its a boost leak it sound like something else. like bad injector which these cars are famous for or the issue around the seals on plastic half of the intake or the blue tie by the intercooler that pops apart.
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Old 01-18-2012, 07:18 PM   #10
docNUCCA
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Default

^^ Smart man!

Had an air leak at Throttle body to TMIC hose (TB side of things) that didn't fix anything.

Solid Autoworks confirmed that injector 2 appears to be stuck wide-open and waiting for injector warranty information at this point.

850 side feeds from Five O Motorsports purchased through metric motors.
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Old 01-18-2012, 07:51 PM   #11
907Bum
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Booze fueled :)

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Damn, this is the second set of side feeds from them i've seen do this. At least they idle well when they dont stick
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Old 01-19-2012, 12:07 AM   #12
docNUCCA
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2006 Legacy GT Wagon

Default

Five O will have another injector on its way tomorrow. Maybe now the flooded starts during warm weather will also be a thing of the past???
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Old 01-19-2012, 01:50 AM   #13
907Bum
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Booze fueled :)

Default

Should be good now
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Old 01-20-2012, 01:41 AM   #14
docNUCCA
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2006 Legacy GT Wagon

Default

update: Five O fed ex'd overnight a complete set of 4 so that I'd have a flow matched set by Friday AM.

Should be good now
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