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MurrTheBlur Samba Member
Joined: May 16, 2015 Posts: 2 Location: Vacaville, CA
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Posted: Sat May 16, 2015 6:06 pm Post subject: Aftermarket turbo issues with MKV GTI |
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Hello Everybody! This is my first post on this forum and could some feedback on a problem I am having with my 2009 GTI. The stock turbo blew up a while back and I decided to go aftermarket to replace it. My mechanic and I did some research and came up with the following upgrade for the car:
-ATP GT28RS Turbo (Kit included, additionally- high flow outlet pipe, inlet elbow, oil separator, boost solenoid, cutoff valve, & boost controller and gauge)
-Tune from 034 Motorsports
-AWE Tuning turbo-back exhaust
So here's the issue: No matter what we try, the check engine light comes on and the code shows "under-boost" even though the boost is dialed in per the tune from 034. The strange thing is, the same code was popping up when the old stock turbo was dying (which made sense). Additionally, the car sometimes goes into "fail safe" and looses all power. This situation is corrected by simply turning the car off and back on again. The check engine light issue has completely baffled my mechanic and myself.
I know plenty of you guys have done similar mods to your GTI's and if you have ANY feedback on this problem it would be GREATLY appreciated!! |
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NY thing Samba Member
Joined: March 23, 2010 Posts: 100 Location: Queens New York
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Posted: Sat May 16, 2015 6:16 pm Post subject: |
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I might not know the answer, but if you ask on vwvortex.com you are more likely to find people with the same car/ problem that you have. |
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MurrTheBlur Samba Member
Joined: May 16, 2015 Posts: 2 Location: Vacaville, CA
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Posted: Sun May 17, 2015 9:32 am Post subject: |
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Yeah, that was the first place I posted lol. I'm using any resources that are available to me. |
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helowrench Samba Member
Joined: August 27, 2003 Posts: 567 Location: dallas texas
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Posted: Sun May 17, 2015 10:40 am Post subject: |
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vwvortex has a TON of info, but it is ti9me consuming to separate the wheat from the chaff, if you know what I mean. _________________ Current VWs:
70 bug vert for wifey
73Thing bucket o rust
73 914 1.7
12 Passat 2.5 Highway cruiser |
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73sports Samba Member
Joined: September 26, 2004 Posts: 2107 Location: Warrington, PA
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Posted: Sun May 17, 2015 6:05 pm Post subject: |
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Make sure there isn't a leak somewhere in the pipes between the turbo and throttle body. If no problem is found, and there is nothing wrong with the turbo/ or bypass valve, it would have to be a software problem. _________________ I will never lie, but sometimes the truth changes.
Central Jersey VW Society |
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