[s-cars] Brief Writeup - Was Bucking Now: Boost is Back!

[Scott Munger]

I find these kind of write-ups very useful, so I'll contribute as I can :-)

	http://www.uneedspeed.net/~mungerts/urS4/moisture_trap/moisture_trap.htm

I'll have you know Cody, that in taking pics for this write-up, I dropped
the damn 1/4 turn
screw down to the belly pan.  After fishing around for a while, I gave up,
put the car on ramps, took off the belly pan and got the darn screw back...
(and my belly pan is geri-rigged with zip ties, someone mentioned re-usable
zip ties, I need to find some of those).  Curses!  :-)

--Scott Munger
'93 S4


> -----Original Message-----
> From: Cody Payne [mailto:Cody.Payne at bconnected.com]
> Sent: Wednesday, November 13, 2002 4:26 PM
> To: mungerts at uneedspeed.net
> Subject: RE: [s-cars] Was Bucking Now: Boost is Back!
>
>
> Whoo hoo Scott,
> 	Say where the heck is the shroud and moisture trap?  Any pics?
>
> Cheers
>
> cp
>
> -----Original Message-----
> From: Scott Munger [mailto:mungerts at uneedspeed.net]
> Sent: Wednesday, November 13, 2002 4:13 PM
> To: 'Chad Clark'; s-car-list at audifans.com
> Subject: [s-cars] Was Bucking Now: Boost is Back!
>
>
>
> Chad, et al,
> I pulled the ECU and checked the boost line.  Dubious that
> only one hose
> clamp was there (the one closest to the ECU was missing),  still, even
> without the clamp, it was quite lodged onto the ECU and a
> "breath" test
> didn't reveal any leaks (although can you break the pressure
> sensor w/your
> mouth??).
>
> I checked the Michelin man hose and it looked good (I have a
> silicone).
>
> I pulled the "shroud" and looked at the moisture trap and one
> of the vac
> lines was off.  In fact, it appears the previous owner had
> used electrical
> tape in an effort to keep it on.  I clamped the clamp a good
> degree tighter
> and went for a drive.  I flogged the motor in 1st, 2nd, and
> 3rd and alas,
> the boost has returned!  This was it!  Upon inspecting the
> trap after the
> drive, the vac hose was a few millimeters from where I
> secured it so I'm
> thinking I'll need a better clamp.
>
> Ran the ECU for codes and got the happy 4444.
>
> One question, I had a small amount of coolant dripping from
> the tranny bell
> housing when the car was on ramps and running.  The dripping
> seemed to stop
> after a bit and my coolant level is normal... I'm not sure
> where it was
> coming from...  was it because I was on ramps?
>
> Thanks to all for the help!
>
> --Scott Munger
> '93 S4
>
>
> > -----Original Message-----
> > From: Chad Clark [mailto:chadclark at qwest.net]
> > Sent: Tuesday, November 12, 2002 7:50 PM
> > To: mungerts at uneedspeed.net
> > Subject: Re: [s-cars] Please Help - Car bucking under WOT
> >
> >
> > Scott,
> >   Check the moisture trap under the black plastic shroud on
> > the firewall.
> > Use a flat head screwdriver to remove the black shroud, then
> > look for the
> > moisture trap. It's a round cylindrical trap for moisture
> > with a vacuum line
> > going into it and out of it. If one vacuum line has slipped
> > off(usually the
> > case) you will get limited boost pressure as you have
> > described. Good luck,
> >
> > Chad Clark
> >
> > on 11/12/02 7:26 AM, Scott Munger at mungerts at uneedspeed.net wrote:
> >
> > >
> > > (No ECU mods - stock + exhaust + air filter is all)
> > > I'll need to dig deeper and do some troubleshooting, but
> > several have
> > > suggested the MAF, even some 1.8t'ers.
> > > Thanks for the feedback.
> > >
> > > --Scott Munger
> > > '93 S4
> > >
> > >
> > >> -----Original Message-----
> > >> From: CaptMagu at aol.com [mailto:CaptMagu at aol.com]
> > >> Sent: Monday, November 11, 2002 11:25 PM
> > >> To: mungerts at uneedspeed.net; s-car-list at audifans.com
> > >> Subject: Re: [s-cars] Please Help - Car bucking under WOT
> > >>
> > >>
> > >> Scott
> > >>
> > >> Sounds like you ran into the infamous max MAF flow ECU cut. A
> > >> quick reset can
> > >> be had by turning the ignition off then on. The lower
> > >> altitude(4000ft vs home
> > >> might have got you). Beware of the steering wheel lock if you
> > >> try to remove
> > >> your key at speed. You might try a total reset of the ECU to
> > >> get your lost
> > >> boost back. You didn't mention what engine/ECU mods you have.
> > >>
> > >> Hap, chillin' on Anini Beach, Maguire
> > >>
> > >
> > >
> > > _______________________________________________
> > > S-CAR-List mailing list
> > > S-CAR-List at audifans.com
> > > http://www.audifans.com/mailman/listinfo/s-car-list
> > >
> >
> >
>
>
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