[s-cars] Intermittent cutout

Tue Sep 5 10:38:01 EDT 2006

Cute.

I have already determined that I have a partially blocked 
kitty.  Here's the basis for that decision:

Boosts have been low.  Engine running smooth as silk but boost only 
reaches about 18 psig.  (normal for the car is mid twenties)  I 
disconnected the downpipe from the trailing exhaust parts and a quick 
hot run saw 23+ psig.

I have new exhaust parts already ordered.  God I hope that solves the 
problem.  I'm getting _SO_ tired of this.  At this point even a 
freakin' Honda is starting to look good.  :-(

At 09:44 AM 9/5/2006, chris chambers wrote:
>*This message was transferred with a trial version of CommuniGate(tm) Pro*
>Bob,
>
>I had a similiar experience many years ago with an 85 Audi 5000s.
>
>Finally figured out that the catalyctic converter had failed and
>the internal parts were loose. When I braked hard or turned at just
>the right angle at just the right speed the parts would block the
>exhaust gas flow through the converter and stall the car.
>
>Could this be your problem, I don't know.....but just in case I
>figured I would let you know.
>
>Good luck
>
>Chris
>
>
>
>
>--- Robert Myers <bob at chips-ur-s.com> wrote:
>
> >
> > More data, Taka.  I swapped the FP relay into the car from my running
> >
> > urS6.  Engine firfed right up and I went for a two mile drive.  Got
> > back home and parked the car and left it idling.  Came back after a
> > few minutes and the engine was dead.  It again fired right up so I
> > went for the two mile run again.  As I drove into my driveway the
> > engine died and would not restart.  At least not quickly.  I needed
> > to get the car out of the way so my wife could get out so I put it in
> >
> > gear and operated the starter.  The car moved about 6 inches and the
> > engine started.  I backed the car into the garage and let it
> > idle.  It died again but started right up when I tried it.  I let it
> > idle and the engine stopped agaim and this time would not start
> > easily.
> >
> > I pulled the codes using VAG-COM.  Got these codes:
> > 00561 - Mixture Adaptation
> >          14-00 - Adaptation Limit (Add) Exceeded
> > 00537 - Lambda (Oxygen Sensor) Regulation
> >          08-10 - Control Limit Surpassed - Intermittent
> > 00519 - Intake Manifold Pressure Sensor (G71)
> >          17-10 - Control Difference - Intermittent
> > 00513 - Engine Speed Sensor (G28)
> >          03-00 - No Signal
> >
> > Speed sensor makes sense - engine was dead.
> > Cleared codes.  Started engine.  Engine died.  Pulled codes again
> > immediately.  Nothing.  No codes.  Attempted to start engine.  CEL
> > came on.  Pulled codes again and got only the 00513 code.
> >
> > Put wife behind wheel.  I climbed into the trunk with a flashlight
> > and my DMM.  Measured voltage across FP.  Zero.  Told wife to crank
> > engine.  Voltage rose to ~11.7 or so volts and then engine fired and
> > voltage went to a rock steady 13.58 volts and held there until engine
> >
> > died again (and voltage dropped to zero) after perhaps a minute.  She
> >
> > cranked again and engine restarted with same sequence of voltage
> > measurements.  Engine died again.  Attempted restart - no
> > soap.  Voltage went to and held at about 11.8 volts while cranking
> > and dropped to zero after stopping cranking.
> >
> > In a while I will be going to FLAPS looking for a fuel pressure
> > gauge.  I'll be driving the other S6.
> >
> > OK, what's next?  Chants and incantations to the Audi gods?  Would
> > you like to volunteer to serve as the required ritual sacrifice?  ;-)
> >
> >
> > At 08:04 AM 9/5/2006, Taka Mizutani wrote:
> > >Bob-
> > >Check the voltage that your fuel pump is getting- one possibility
> > >that I think Dave Forgie has found in other S-cars is that the fuel
> > >pump doesn't get a full 14.4V and thus can't work to its full
> > potential.
> > >
> > >If the pump has low voltage and then tries to deliver, I could see
> > >that you could kill the pump by it trying to run at 100% all the
> > >time due to lack of sufficient voltage.
> > >
> > >Taka
> > >
> > >On 9/3/06, Robert Myers
> > <<mailto:bob at chips-ur-s.com>bob at chips-ur-s.com> wrote:
> > >
> > >The fuel pump is brand spanking new - two weeks in the car.  It is
> > >the second new fuel pump in two months.  :-(  Now, why would my car
> > >be killing fuel pumps?  Fuel in tank looks OK and no significant
> > >amount of debris in the tank.
> > >
> > >No virus found in this incoming message.
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> > >Version: 7.1.405 / Virus Database: 268.11.7/437 - Release Date:
> > 9/4/2006
> >
> >
> > Bob
> > urS6 with RS2 and other mods for sale: http://chips-ur-s.com/S6.html
> >
> >
> > _______________________________________________
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> > S-CAR-List at audifans.com
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> >
>
>
>Make April 15th just another day http://www.fairtax.org
>
>
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Bob
urS6 with RS2 and other mods for sale: http://chips-ur-s.com/S6.html