[s-cars] Vacuum leak

[Douglas Landaeta]

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
> >>>> _______________________________________________
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> >>>> http://www.audifans.com/kb/List_information
> >
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