[s-cars] Vacuum leak

Sat Dec 12 11:15:15 PST 2009

Well I got the car for a g so I'm just trying to make keep up with my  
buddies stis and evo and the like. If something breaks I'll fix it.  
Should be real good until the new turbo if I get this bpv/ boost issue  
figured out l. All is well

Take it easy fellas

Sent from my iPhone

On Dec 12, 2009, at 1:23 PM, djdawson2 at aol.com wrote:

> sigh....
>
>
> -----Original Message-----
> From: Cory Pio <cpio921 at gmail.com>
> To: Michael Lardizabal <mikellardizabal at yahoo.com>
> Cc: s-car-list at audifans.com <s-car-list at audifans.com>
> Sent: Sat, Dec 12, 2009 9:48 am
> Subject: Re: [s-cars] Vacuum leak
>
> Well the motor sounds real good. Compression perfect. The valves and
>
> lifters sound like shit. My reasoning for the o34 is I've heard
>
> nothing but good things about their coils and will be running it on a
>
> chipped program until late January. Vems is going in. I have a burns
>
> shorty collector on order and will be making a t3 flanged mani with my
>
> welder buddy to bolt
>
> lt up to a holset hx35 or he351cw. Whichever pops up in his desiel
>
> shop first. Build the head throw some studs and a gasket in it. Than
>
> boosting the shit out of it. Should be fun and get me going fast for
>
> less than 5k.
>
>
>
> Sent from my iPhone
>
>
>
> On Dec 12, 2009, at 8:27 AM, Michael Lardizabal <mikellardizabal at yahoo.com
>
>  > wrote:
>
>
>
> > Cory-
>
> >
>
> > I'm going to echo what Bob and Dawson said.
>
> >
>
> > The moisture trap is one of the biggest culprits for boost loss. I
>
> > would start there, then a pressure test. I doubt there's anything
>
> > wrong w/ your MAF . Once that particular Bosch unit goes
>
> > bad.....you'll most definitely know it....your symptoms aren't
>
> > indicative of that.
>
> >
>
> > Once you get your car sorted out you're going to love having VEMS. I
>
> > had it in my last RS2'd car. , and will have it in my new S6 project
>
> > car as well.
>
> >
>
> > Out of curiousity, why didn't you get the EFIXpress HO coil set up
>
> > w/ your VEMS ?> Marc's system rocks ! and he probably would've given
>
> > you a smokin' deal ?
>
> >
>
> > Cheers!
>
> >
>
> > Mike
>
> >
>
> > PS- Just make sure your car is at a proper Stage 0 before you throw
>
> > any bling or shiny go fast parts at it . High boost will empty your
>
> > wallet faster than a hiccup if you're doing band-aid fixes.
>
> >
>
> > --- On Sat, 12/12/09, Cory Pio <cpio921 at gmail.com> wrote:
>
> >
>
> > From: Cory Pio <cpio921 at gmail.com>
>
> > Subject: Re: [s-cars] Vacuum leak
>
> > To: "Douglas Landaeta" <dlandaeta at gmail.com>, "s-car-
>
> > list at audifans.com" <s-car-list at audifans.com>
>
> > Cc: "s-car-list at audifans.com" <s-car-list at audifans.com>
>
> > Date: Saturday, December 12, 2009, 2:15 AM
>
> >
>
> > Thanks for the responses guys I'm going to try some nice parts at it
>
> > this week and report backk
>
> >
>
> > Hope everyones having fun boosting around in the dense air
>
> >
>
> > Sent from my iPhone
>
> >
>
> > On Dec 12, 2009, at 2:04 AM, Douglas Landaeta <dlandaeta at gmail.com>
>
> > wrote:
>
> >
>
> > > Cory,
>
> > > I've got a new 710 valve sitting on the shelf here. Let me know if
>
> > > you need it.
>
> > > Doug
>
> > >
>
> > > On Sat, Dec 12, 2009 at 1:04 AM, Cory Pio <cpio921 at gmail.com>  
> wrote:
>
> > > I guess I'm asking is it possible my wastegate or bpv are  
> hesitating
>
> > > to shut quickly on off throttle because of a vacuum leak?
>
> > >
>
> > > Sent from my iPhone
>
> > >
>
> > > On Dec 12, 2009, at 12:57 AM, Robert Myers <bob at chips-ur-s.com>
>
> > wrote:
>
> > >
>
> > > > *This message was transferred with a trial version of  
> CommuniGate
>
> > (r)
>
> > > > Pro*
>
> > > >
>
> > > >
>
> > > > Cory,
>
> > > >
>
> > > > If you hear air escaping --- YOU HAVE A LEAK!  Period.  You  
> simply
>
> > > > must find it and fix it or the car won't run worth crap until  
> you
>
> > > > do.  Yeah, finding a leak isn't glamorous but you simply have to
>
> > do
>
> > > > it or you're just pissing into the wind.
>
> > > >
>
> > > > Bob
>
> > > >
>
> > > >
>
> > > >
>
> > > >
>
> > > > At 12:49 AM 12/12/2009, Cory Pio wrote:
>
> > > >> *This message was transferred with a trial version of  
> CommuniGate
>
> > > >> (r) Pro*
>
> > > >> Yeah I'm thinking it could be my retarded intake setup  
> Inherited
>
> > > from
>
> > > >> the PO. I'm getting a fuel trim code adaptation limit  
> exceded. I
>
> > > >> already replaced the plugs and fuel filter. I have HO coils
>
> > > coming in
>
> > > >> from 034. I'm thinking of just switching to a 1.8 bar spring
>
> > > >> getting a
>
> > > >> bpv and going with vems ecu to get rid of the maf which seems
>
> > to be
>
> > > >> tied into my n75 valve. Hopefully going big turbo and redoing
>
> > > alot of
>
> > > >> stuff this problem will go away. Just tedious annoying things
>
> > like
>
> > > >> vacuum leaks piss me off when troubleshooting in the freezing
>
> > > cold. I
>
> > > >> rather be bolting in some shinny new parts. The wastegate or
>
> > bpv is
>
> > > >> de
>
> > > >> staying open when I give little throttle.
>
> > > >>
>
> > > >> Or for a better example when I get into boost and let off
>
> > throttle
>
> > > >> boost goes bye. Well when I get back into it at higher rpm it
>
> > > hardly
>
> > > >> comes out of vacuum and I can still here air escaping. Hmmmmmm
>
> > > >>
>
> > > >> Sent from my iPhone
>
> > > >>
>
> > > >> On Dec 11, 2009, at 9:57 PM, Robert Myers <bob at chips-ur-s.com>
>
> > > wrote:
>
> > > >>
>
> > > >>> *This message was transferred with a trial version of
>
> > CommuniGate
>
> > > (r)
>
> > > >>> Pro*
>
> > > >>>
>
> > > >>> The "vacuum pump" under the rear seat operates the pneumatic
>
> > > locking
>
> > > >>> system and has nothing to do with your boost or lack thereof.
>
> > > >>>
>
> > > >>> If I read your complaint correctly I think you are complaining
>
> > > that
>
> > > >>> your engine is showing turbo lag.  This is 100% normal for a
>
> > > >>> turbocharged engine,  If boost is not coming on as early as it
>
> > > used
>
> > > >>> to and/or it isn't getting as high as it used to then you may
>
> > well
>
> > > >>> have a leak in the induction system.  There are several cute
>
> > > tricks
>
> > > >>> to locate such leaks.  Some work in one case but not in  
> others.
>
> > > >>>
>
> > > >>> If you have a leak while idling (the leak is open at low
>
> > > pressures)
>
> > > >>> try spraying ether based starter fluid over the plumbing while
>
> > the
>
> > > >>> engine is idling.  If ether hits the leak some of it will be
>
> > drawn
>
> > > >>> into the system and the engine rpms will pick up.  This can  
> help
>
> > > >>> find such a leak.
>
> > > >>>
>
> > > >>> You can construct a simple gadget from a 4-6" piece of 3" PVC
>
> > > pipe,
>
> > > >>> a 3" cap, some PVC glue, and a tire valve.  Use this gadget  
> and
>
> > > some
>
> > > >>> shop air to pressurize your induction system to perhaps 7-10
>
> > psig.
>
> > > >>> Listen for a hiss sound from the plumbing and track it down.
>
> > > >>>
>
> > > >>> Of course if you have a BIG leak you can't get enough air in  
> the
>
> > > >>> system to inflate it even a little.  Start looking for likely
>
> > > >>> leaks.  The very first place to look is the Michelin Man hose
>
> > > (from
>
> > > >>> the crossover pipe to the intercooler inlet) and closely  
> inspect
>
> > > it
>
> > > >>> for leaks - take it out and flex/bend/twist/etc to expose and
>
> > > >>> potential leak. if it isn't there then do the same with other
>
> > > >>> portions of the system.
>
> > > >>>
>
> > > >>> Do not ignore the small tubing connected to the water trap.
>
> > > Earlier
>
> > > >>> s-cars look for the trap high on the engine side of the  
> firewall
>
> > > >>> near the rear of the engine.  It is a little larger than a  
> 35mm
>
> > > film
>
> > > >>> cannister.  Later models have the trap located under the  
> carpet
>
> > > near
>
> > > >>> the ECU.  Trace the MAP hose back from the ECU to find the  
> trap.
>
> > > >>>
>
> > > >>> Bob
>
> > > >>>
>
> > > >>>
>
> > > >>> At 09:36 PM 12/11/2009, you wrote:
>
> > > >>>> *This message was transferred with a trial version of
>
> > CommuniGate
>
> > > >>>> (r) Pro*
>
> > > >>>> Alright guys
>
> > > >>>>
>
> > > >>>> Im thinking a vacuum leak might be giving me wastegate/ bpv
>
> > > >>>> problems. My car pulls about -15 hg in.  When fully warmed
>
> > up. It
>
> > > >>>> used
>
> > > >>>> to do 20. So my question is my car locking system and the
>
> > vacuum
>
> > > >>>> pump
>
> > > >>>> under my rear seat a good place to start looking for leaks?
>
> > > >>>>
>
> > > >>>> My symptoms are my car doesn't go into boost right away . The
>
> > > >>>> wastegate or bpv seems to be staying open unless you really  
> get
>
> > > on
>
> > > >>>> it.
>
> > > >>>> Any help would be much appreciated.
>
> > > >>>>
>
> > > >>>> Thank you
>
> > > >>>> Cory pio
>
> > > >>>> _______________________________________________
>
> > > >>>> S-CAR-List mailing list
>
> > > >>>> http://audifans.com/mailman/listinfo/s-car-list
>
> > > >>>> http://www.audifans.com/kb/List_information
>
> > > >
>
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>
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>
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>
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>
> > >
>
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>
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>
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>
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