Corleone

Sweet il give that a try tomorrow and post the outcome

It still boosts just makes that weird noise and the boost stops, it's quite strange because both turbos seemed to spool fine I had a leaking up pipe before causing no boost, but after that it drove fine I haven't been driving it for the past couple weeks as I got a new car. How do I get it to run in parallel ? Cheers

Hey guys, just want to get a second opinion but yeah when my secondary turbo is supposed to kick in I hear an odd sound ? It almost sounds like an external wastegate opening through a screamer pipe and the boost drops to about 3 psi ? Not blowing any smoke out the exhaust but I do smell a kinda burning oil smell after I turn the car off. Is the secondary buggered ? I downgraded both turbos to standard a couple months back and it only just started doing this. Thanks in advance.

Okay so we have boost again it was the up pipe that was leaking thanks for all your help guys

So hose has been replaced STILL NO BOOST at all, took it to all subaru parts for diagnostics they rechecked all the vacuum hoses, rechecked the turbo installation and found absolutely nothing out of the ordinary gonna leave it with them overnight see if they can pin point the problem cos i've run out of ideas. ugggghhhhhhhh

Found a split in the hose right where it connects to the primary I ripped it off and connected it back up tried to get it as air tight as possible but still sitting on negative I'll replace the whole thing tomorrow morning if I can and I'll update

I don't think the leak is between the manifold and the block somewhere in that area though, I'll look into replacing the afm after i rule out the intake hose, gonna stick it onto a computer tomorrow see what running problems might come up if all else fails I'll start piecing together a single conversion.

I rechecked all the vacuum plumbing seems to be in order i can hear what seems like a vacuum leak when the car is idling BUT i can't pinpoint where its coming from sounds like it may be somewhere under the intake manifold on the drivers side. Going to replace the intake hose tomorrow morning would the afm contribute to negative boost ?

http://youtu.be/Slh7yzNwTx8 I made a recording of the error code, turbos should be sweet they came from good sources I'm gonna take it to see a subie specialist tomorrow if I rule out the vacuum lines tomorrow and will update ugggghhhhhhhh thanks again.

Okay so the only stored fault code that came up was code 56 5 flashes followed by 6 short flashes. Would that contribute to the boost problem?

CEL light will come on usually only under increased acceleration like when going from 0-100 to get onto the motorway, it idles like that randomly mostly only coming to a stop though, and yeah the throttle opens right up.

Thanks for your reply I will recheck vacuum hoses during the day, it was idling fine but sometimes when driving and coming to a stop it starts to sputter and idle really low causing it to stall on occasion there was a vacuum hose in the wrong place and I replaced the IACV the idling is much better then what it used to be, I suspect there may be a split in the intake pipe near the primary thats the next thing I am going to try but thought I'd ask for more possible reasons, It has a decatted mid section and there doesn't seem to be any blockage in the exhaust. If there was a split somewhere would that explain the -10 boost gauge reading ? Cheers.

Ugh so anyway if this has already been posted please do forgive me new to this site and nothing showed up in a google search. anyways I have a bd5 RS-B legacy that doesn't boost at all, I thought it was the turbos so we replaced both vf31 and vf27 back to stock vf18 and vf19 when we took them off there seemed to be abit of oil in the secondary turbo and it was stiff so we assumed the secondary was buggered, after we put it back together with the new turbos took it for a drive same result hit -10 vacuum and wouldn't go past it, checked all the vacuum hoses and they seem to be in the right place not %100 sure though. Bov no longer goes off, any ideas ?