Long Island Legacy Posted June 11, 2009 Share Posted June 11, 2009 I can only make 12.5 psi on my stg 2 tune, i think i either have a boost leak or a stuck wastegate arm. Anny suggestions? Link to comment Share on other sites More sharing options...
Spec B Posted June 11, 2009 Share Posted June 11, 2009 Sounds like a boost leak..I had similar issues when my stock BOV was leaking. Link to comment Share on other sites More sharing options...
Long Island Legacy Posted June 11, 2009 Author Share Posted June 11, 2009 bov is not leaking tho, just got a new stocker that worked, think my ebcs took a dump. ever heard of one going bad? Link to comment Share on other sites More sharing options...
tommypenguin Posted June 11, 2009 Share Posted June 11, 2009 I would bet you have a leak, how is your idle? Link to comment Share on other sites More sharing options...
m sprank Posted June 11, 2009 Share Posted June 11, 2009 Rob, The BOV I sent you was good (pulled it off to replace with a GFB I bought from a member here). Plus I sent a brand new o-ring with it. Sounds like you've got a leak. What mods are you running with the stage 2? How long has it been stage2, and when did the problem start? -Mike Link to comment Share on other sites More sharing options...
Long Island Legacy Posted June 12, 2009 Author Share Posted June 12, 2009 Rob, The BOV I sent you was good (pulled it off to replace with a GFB I bought from a member here). Plus I sent a brand new o-ring with it. Sounds like you've got a leak. What mods are you running with the stage 2? How long has it been stage2, and when did the problem start? -Mike i said the same problem with my forge , just thought the oem one would fix it. cant seem to find the leak, think the bcs is shot, is this unheard of? Link to comment Share on other sites More sharing options...
m sprank Posted June 12, 2009 Share Posted June 12, 2009 Not unheard of, but unlikely. Have you removed the intercooler? If so, check the smalll hose off the BOV and trace it back to the t-fitting under the intercooler. Sometimes it can come off the T, or get pinched. Likely culprits are the turbo to intercooler gasket or the intercooler outlet hose (mine has come off my AVO once). If using the stock TMIC have you checked the end tanks? Maybe you are leaking there. Link to comment Share on other sites More sharing options...
Spec B Posted June 12, 2009 Share Posted June 12, 2009 Not unheard of, but unlikely. Have you removed the intercooler? If so, check the smalll hose off the BOV and trace it back to the t-fitting under the intercooler. Sometimes it can come off the T, or get pinched. Likely culprits are the turbo to intercooler gasket or the intercooler outlet hose (mine has come off my AVO once). If using the stock TMIC have you checked the end tanks? Maybe you are leaking there. +1 to everything he said. Link to comment Share on other sites More sharing options...
Long Island Legacy Posted June 12, 2009 Author Share Posted June 12, 2009 +111 to all! PROBLEM SOLVED!!! car was recently in for a "major overhaul" ya can say, and i discovered that the intercooler was crimping the small boost line that runs from the back of the IM to the BOV, I fixed the crimp and problem solved. (thanks perrin for making a part that really fits, LOL!) Link to comment Share on other sites More sharing options...
Spec B Posted June 12, 2009 Share Posted June 12, 2009 Awesome! Link to comment Share on other sites More sharing options...
m sprank Posted June 12, 2009 Share Posted June 12, 2009 Great to hear. Link to comment Share on other sites More sharing options...
Infamous1 Posted June 14, 2009 Share Posted June 14, 2009 +111 to all! PROBLEM SOLVED!!! car was recently in for a "major overhaul" ya can say, and i discovered that the intercooler was crimping the small boost line that runs from the back of the IM to the BOV, I fixed the crimp and problem solved. (thanks perrin for making a part that really fits, LOL!) Did you ever reset the ECU after this fix? A crimped line should not affect boost. Link to comment Share on other sites More sharing options...
Long Island Legacy Posted June 15, 2009 Author Share Posted June 15, 2009 Did you ever reset the ECU after this fix? A crimped line should not affect boost. yea, and it did the line going from the bov to under the ic makes a huge difference if it comes off or is crimped, trust me! Link to comment Share on other sites More sharing options...
m sprank Posted June 15, 2009 Share Posted June 15, 2009 Several members have had this issue. Hasn't happened to me, yet... But I have read plenty of posts describing the problem. Just happy to hear you got your boost back. -Mike Link to comment Share on other sites More sharing options...
Infamous1 Posted June 15, 2009 Share Posted June 15, 2009 yea, and it did the line going from the bov to under the ic makes a huge difference if it comes off or is crimped, trust me! Lol, trust me that wasn't your problem then As I state to memebers over and over, your boost loss was from the dropping of your IAM. The boost was brought back up once the ecu was reset. A crimped boost line once again would have no affect on the boost acheived, if anything it would have an opposite affect(overboosting). Link to comment Share on other sites More sharing options...
Long Island Legacy Posted June 15, 2009 Author Share Posted June 15, 2009 Several members have had this issue. Hasn't happened to me, yet... But I have read plenty of posts describing the problem. Just happy to hear you got your boost back. -Mike Infamous1 this is what really counts!!!!!!!! thanks for the"proper" explanation of my problem. Link to comment Share on other sites More sharing options...
mwiener2 Posted June 15, 2009 Share Posted June 15, 2009 Lol, trust me that wasn't your problem then You CANNOT know this. It is IMPOSSIBLE to accurately diagnose a problem over the internet without ALOT of back and forth conversation. A crimped line CAN and WILL cause boost issues. In the case of the OP, his BOV line was crimped. This means that the top of the BOV diaphragm was not seeing positive pressure and the pressure inside the IC was forcing the BOV open. Alternatively, when the OP let off the gas, I'm willing to bet the BOV was not staying open long enough and causing some compressor surging. My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
m sprank Posted June 15, 2009 Share Posted June 15, 2009 For the record I am glad the problem is fixed. But I am NOT claiming to know more than Infamous1. Hell, he tuned my car! Link to comment Share on other sites More sharing options...
Infamous1 Posted June 15, 2009 Share Posted June 15, 2009 You CANNOT know this. It is IMPOSSIBLE to accurately diagnose a problem over the internet without ALOT of back and forth conversation. A crimped line CAN and WILL cause boost issues. In the case of the OP, his BOV line was crimped. This means that the top of the BOV diaphragm was not seeing positive pressure and the pressure inside the IC was forcing the BOV open. Alternatively, when the OP let off the gas, I'm willing to bet the BOV was not staying open long enough and causing some compressor surging. Lol okay... So boost would stick right at 12psi but never spike then drop? I do an awful lot of e-tuning and diagnosing ALOT of problems without even seeing the car. If you do not believe my "diagnosis" then just take it for what it is. Link to comment Share on other sites More sharing options...
Long Island Legacy Posted June 17, 2009 Author Share Posted June 17, 2009 Lol okay... So boost would stick right at 12psi but never spike then drop? I do an awful lot of e-tuning and diagnosing ALOT of problems without even seeing the car. If you do not believe my "diagnosis" then just take it for what it is. http://images.google.com/url?source=imgres&ct=tbn&q=http://www.myfreewallpapers.net/movies/wallpapers/groundhog-day.jpg&usg=AFQjCNGPAjI6sz0xX_1HX_xhmCIaLwJkqA Link to comment Share on other sites More sharing options...
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