sdvictor Posted February 10, 2009 Share Posted February 10, 2009 Hey guys, I'm officially driving a car with a bit under 5 PSI of boost, due to some mechanical issue. Car feels sooooo slooooow. The dealership tech (Rick Dell from KM Subaru; for those from San Diego) basically said it should be the 7-10 PSI range; and could be one of a couple of things wrong: 1- Bad Gas - Crappy Cali gas? 2- Bad turbo - carbon build up or impending failure 3- Melted cat - creating too much back pressure There was no leak detected, so it isn't any boost leak. They put the car back together, and asked me to drive it until i can put enough new gas in. If there's still the problem; they're gonna yank the engine and exhast and put in a new cat and turbo to see if that solves it. Otherwise, no codes are being thrown. Anyone else ever experience a problem like this? Anyone want to gander a guess what's happening here? Link to comment Share on other sites More sharing options...
Spec B Posted February 10, 2009 Share Posted February 10, 2009 Since the IC is off, check all the vacuum lines thoroughly. Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 10, 2009 Share Posted February 10, 2009 Since the IC is off, check all the vacuum lines thoroughly. Link to comment Share on other sites More sharing options...
sdvictor Posted February 10, 2009 Author Share Posted February 10, 2009 Yeah, those were checked, and he said they were all seated properly and inspected thoroughly. Subietonic can attest to Rick's thoroughness and knowledge of these cars. Link to comment Share on other sites More sharing options...
chenc544 Posted February 10, 2009 Share Posted February 10, 2009 Is SI-Drive stuck on intelligent mode or something? How many miles are on the car? I found number 2 and 3 rather unlike for a relatively new '08. Link to comment Share on other sites More sharing options...
sdvictor Posted February 10, 2009 Author Share Posted February 10, 2009 No, he checked all three modes on the SI-drive. the car has about 15k miles on it. He's a bit befuddled about it, so he wants me to drive it until new gas goes in to make sure it's not that. Link to comment Share on other sites More sharing options...
chenc544 Posted February 10, 2009 Share Posted February 10, 2009 You can try to do a log if you have a laptop. It will probably shed lights on what the problem is. http://www.legacygt.com/forums/showthread.php?t=20090 Link to comment Share on other sites More sharing options...
lawl Posted February 10, 2009 Share Posted February 10, 2009 if he has an accessport he can log it also. car for sale. PM me! Link to comment Share on other sites More sharing options...
Throttlejockey Posted February 10, 2009 Share Posted February 10, 2009 Why do they have to pull the motor to do the work? Link to comment Share on other sites More sharing options...
sdvictor Posted February 11, 2009 Author Share Posted February 11, 2009 Sorry, I might have had to clarify. If the turbo and cat doesn't work, they might have to pull the engine and send in a new one. Link to comment Share on other sites More sharing options...
Reuben Posted February 11, 2009 Share Posted February 11, 2009 Should be 7-10 psi!? You're kidding right, new GT's seriously don't have such low boost do they? That's less boost than old GT's get of the bloody primary alone, my TT was boosting 14 on primary and 18 on secondary. Link to comment Share on other sites More sharing options...
ultimakf7 Posted February 11, 2009 Share Posted February 11, 2009 Stock GT's should boost at ~13-14 psi Link to comment Share on other sites More sharing options...
schwartzki Posted February 11, 2009 Share Posted February 11, 2009 I have a lack of boost sometimes, one gear it pulls hard and next gear not so much. I think its my stock BOV cause when its cold it makes noise like its venting to the outside and sounds like its leaking when slightly warmer at boost. Then becomes quiet, but its still of suspicion. Anyone have this issue? Link to comment Share on other sites More sharing options...
chenc544 Posted February 12, 2009 Share Posted February 12, 2009 The boost is limited in 1st and 2nd gear from the factory if that's the problem you are running into. Link to comment Share on other sites More sharing options...
Irrational Exuberance Posted February 12, 2009 Share Posted February 12, 2009 Stock GT's should boost at ~13-14 psi yup thats about right. at stage 2 w/o turbo or IC upgrades peak for me is just over 15, with it staying at 14 most of the time and tapering to 13 "i like my women the way i like terrorists... ...screaming gods name and ready to explode." http://img255.imageshack.us/img255/5479/troy3nu5.jpg Link to comment Share on other sites More sharing options...
Guest LGT-NY Posted February 12, 2009 Share Posted February 12, 2009 Stage 2 on a stock turbo with a perrin TMIC my peak boost is just over 19psi, tapering to 16psi at redline. Link to comment Share on other sites More sharing options...
ultimakf7 Posted February 12, 2009 Share Posted February 12, 2009 Stage 2 on a stock turbo with a perrin TMIC my peak boost is just over 19psi, tapering to 16psi at redline. Show-off! Link to comment Share on other sites More sharing options...
sdvictor Posted February 13, 2009 Author Share Posted February 13, 2009 Still laggin' here. Waiting for a new tank...though not hopeful here. Link to comment Share on other sites More sharing options...
dbrunone Posted February 13, 2009 Share Posted February 13, 2009 Stage 2 on a stock turbo with a perrin TMIC my peak boost is just over 19psi, tapering to 16psi at redline. Wow 19psi is a lot for our little turbo...my protuned stg2 hits like 17psi, thats cause i told him to keep it conservative. to the OP, theres no reason i can think of to replace the motor. It's gotta be some sort of boost control issue (vacuum line or electronic), plugged exhaust, boost leak, or something messed up with the turbo itself (very unlikely). If the pressure isnt even getting into the engine, why would you suspect that the engine is causing the low pressure? its retarded. Link to comment Share on other sites More sharing options...
sdvictor Posted February 13, 2009 Author Share Posted February 13, 2009 Wow 19psi is a lot for our little turbo...my protuned stg2 hits like 17psi, thats cause i told him to keep it conservative. to the OP, theres no reason i can think of to replace the motor. It's gotta be some sort of boost control issue (vacuum line or electronic), plugged exhaust, boost leak, or something messed up with the turbo itself (very unlikely). If the pressure isnt even getting into the engine, why would you suspect that the engine is causing the low pressure? its retarded. yeah, i'm thinking along the same lines. The master tech checked for boost leak and some other stuff. i'll keep people updated as the weeks pass. Link to comment Share on other sites More sharing options...
IntenseBlue Posted February 13, 2009 Share Posted February 13, 2009 I wouldn't think it would be the cat creating backpressure. That would increase boost. Boost is technically a sign of restriction. Link to comment Share on other sites More sharing options...
AWDxBOOST Posted February 13, 2009 Share Posted February 13, 2009 if that dealership thinks 7-10 is normal, i wouldnt take it there Link to comment Share on other sites More sharing options...
dbrunone Posted February 13, 2009 Share Posted February 13, 2009 I wouldn't think it would be the cat creating backpressure. That would increase boost. Boost is technically a sign of restriction. plugged cat = restricted exhaust flow = less energy to spin turbo = lower boost Link to comment Share on other sites More sharing options...
sdvictor Posted February 24, 2009 Author Share Posted February 24, 2009 Parts have come. Time to bring the car in tomorrow afternoon so they can fix wednesday and possibly for longer. BUT, the dealership isn't giving me a loaner. UGH...time to call SOA. Link to comment Share on other sites More sharing options...
Shik Posted February 24, 2009 Share Posted February 24, 2009 Parts have come. Time to bring the car in tomorrow afternoon so they can fix wednesday and possibly for longer. BUT, the dealership isn't giving me a loaner. UGH...time to call SOA. What parts did they get for it? Link to comment Share on other sites More sharing options...
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