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Quattro Digest Wednesday, 2 August 1995 Volume 02 : Number 365
In this issue:
Little A/C trick for real hot weather
A bit of bad news from LA-LA land
Re[4]: WOT accessory cutoff switch
Re: 1983 Turbo Quattro Coupe for Sale - Autoweek 7/17/95
Re: A/C programmer & GM
Are there performance parts for 88 80 Quattro?
Re: Re[4]: WOT accessory cutoff switch
Re: A/C programmer & GM
[none]
problem with digest
Re: Pro Rally, Rumford
Re: Bearings bad on a 87 4000CSq?
Re: OOOOWWW-D OVR race
Re: Brake Booster Help!
Re: Brakes-82TQC
Re: more on '87 TQW idle problem?
Re: Motor dropping ......
Do you just belong?
Re: Radio adventure....
Re: Still looking at 200s...
Re: Motor dropping ......
ur-Quattro Wanted
Reply-to: a-powell1@tamu.edu
Do You Drive a 1990 200T?
Re: ur-Quattro Wanted
Re: Do You Drive a 1990 200T?
Re: ur-Quattro Wanted
Re: Motor dropping ......
Momentary power loss
Re: Motor dropping ......
Re: Momentary power loss
See the end of the digest for information on subscribing to the quattro
or quattro-digest mailing lists.
To submit a message to the quattro list, mail to quattro@coimbra.ans.net.
----------------------------------------------------------------------
From: MEL1523@ACS.TAMU.EDU
Date: Thu, 20 Jul 1995 9:32:37 -0500 (CDT)
Subject: Little A/C trick for real hot weather
Thought I'd pass along a little trick I discovered for driving in really hot
weather. I was driving along the Louisiana causeway on a nice warm day (98
F, with a 75 F dew pt.), and the A/C was on full blast, and ok, but not as
cold as I thought it should be for 65+mph. I started lowering the
temperature set point and nothing changed. I thought it was pegged on full
cold, and wound up (as conrtol people say). Then I set it on LO, and voila,
it got noticeably colder.
Upon further review, I found in the manual that after about 5 minutes, the
fresh air door opens. The temperature was above set pt, but the stupid A/C
control isn't smart enough to leave it on recirculate or to put it back
there if the interior temp gets warm. Evidently it just waits 5 minutes and
goes on fresh. If the temp is hot all is then does is close the heater
valve, hot blend door, and put the fan on high. Problem is..on a hot day at
high speed, the hot swamp air was just too much for the poor little
evaporator.
The trick...put it on low until you get cold or comfortable then go to your
favorite temperature. That will hold the system on recirc. And yes, I'm
thinking of installing a switch that grounds the recirc solenoid in the
programmer thereby locking it on recirc. It gets hot here in Texas too.
- Mitch
------------------------------
From: MEL1523@ACS.TAMU.EDU
Date: Thu, 20 Jul 1995 9:40:53 -0500 (CDT)
Subject: A bit of bad news from LA-LA land
I used to live there, so I call California LA-LA land...only because I'm
jealous of your mountain roads :).
The Mercedes dealer my dad goes to recently sent him a letter stating that
to do their part for the environment, they will stop servicing R-12 A/C
systems shortly. He got a coupon for 10% off labor on a CONVERSION TO
R-134a!
I don't know if this is a new California law or something, or he just has a
greenie running his dealer, but if it's a law, then you Californians better
get your systems tuned up now. I don't even want to know what a Mercedes
conversion costs. I thought my new $650 compressor was bad. Of course, you
could move to Texas where refusal to service an A/C system can get you shot.
- Mitch
------------------------------
From: "Sylvester, Michael" <msylvester@smtp.microcom.com>
Date: Thu, 20 Jul 95 10:59:58 EST
Subject: Re[4]: WOT accessory cutoff switch
You are correct, the field windings can become unexcited without the blue
wire
connected, but not always as instantaneous as you want it to be. It could
take
minutes for this to happen.
Mike
______________________________ Reply Separator
_________________________________
Subject: Re: Re[2]: WOT accessory cutoff switch
Author: AUDIDUDI@delphi.com at SMTP
Date: 7/20/95 10:25 AM
> Interrupting that "little blue wire" does not always shut down the
> alternator. This wire excites the field windings. The field
> windings do not always become unexcited when voltage is removed from
> that wire.
>
> You can test this. Interrupt the blue wire, put a meter on the "big
> red wire" and ground. Start the car. The meter will read around 12
> Volts. Now with the car still running attach the blue wire. The
> voltage should increase to somewhere between 13 and 14 volts and you
> might even hear the alternator. Now interrupt the blue wire again,
> if the alternator were to shut off the voltage should drop back to 12
> volts. I bet it doesn't.
You may be right ... on my 5000, I use a vacuum-triggered alternator cut-out
switch I bought and installed several years ago, and on my 4000, I installed
a hidden switch under the dash that I flipped before starting the car (I was
autocrossing the car in a stock class and this was one of my "speed secrets"
... it was also cheating, something I regret and no longer indulge in.)
But if you're right, why did the battery on my 5000 die 45 minutes after the
"check alternator" light came on late one night several years ago? After we
poked and probed a bit, we discovered the ring terminal at the end of the D+
wire had broken ... since the light didn't come on when the car was started,
I'm pretty sure it broke while the car was running. If the alternator still
functioned despite this, why did the battery discharge?
/| | | |\ | |\ | | |\ | AudiDudi@delphi.com
/-| | | | | | = | | | | | | | Jeffrey Goggin
/ | |_| |/ | |/ |_| |/ | Scottsdale, Arizona
------------------------------
From: esw5@postoffice2.mail.cornell.edu (Ernest Wong)
Date: Thu, 20 Jul 1995 11:19:54 -0400
Subject: Re: 1983 Turbo Quattro Coupe for Sale - Autoweek 7/17/95
[from Jason Snyder]
>Several months ago, I took this car to a local dealer, to have the
>service manager check it out for me. As it turns out, it was HIS car.
>He said not to bother with it, as it was in very bad condition. Both
>front fenders are almost completely rotted away, and I was told that it
But wouldn't that be a good excuse to mount those kevlar front fenders...
Ernest Wong
esw5@cornell.edu
------------------------------
From: "Igor Strashny" <igor@msrbsgi1.mc.duke.edu>
Date: Thu, 20 Jul 1995 10:01:20 -0400
Subject: Re: A/C programmer & GM
Caddy and Audy A/C prgrammers are exactly tha same exccept for the plastic arm
on the motor that drives the vent cable. You can easily retrofit the old arm
and use the programmer.
In my experience (while working as an AUDI/MB technician) only the reductor
inside that little motor is the subject to wear. Otherwise A/C programmer
usually performs satisfactory.
To prolong the service time of the motor make sure that cable and flaps move
freely.
Good Luck
- --
igor@msrbsgi1.mc.duke.edu Phone:919.684.41.95
strasha@acpub.duke.edu Fax: 919.681.84.90
igor@mathlab.sunysb.edu
("`-''-/").___..--''"`-._
Igor Strashny `6_ 6 ) `-. ( ).`-.__.`)
Box 3093, DUMC, Orhopaedic (_Y_.)' ._ ) `._ `. ``-..-'
Bioengineering Laborathory _..`--'_..-_/ /--'_.' ,' art by
Durham, NC 27710 (il),-'' (li),' ((!.-' Felix Lee
------------------------------
From: mickley@postoffice.ptd.net (Lou Mickley)
Date: Thu, 20 Jul 1995 11:36:05 -0400
Subject: Are there performance parts for 88 80 Quattro?
Q1: Does anyone know of performance parts for my 1988 80 Quattro? I
purchased the car about a year ago and its a great car but needs more
horsepower (there's never enough).
I'm looking for information on things like performance exhaust, headers,
chip replacement, struts, air box enhancements, and even performance springs
and sway bars.
Q2: Also, how about better ideas for the anemic headlights? I've tried
replacing the H4 bulbs with 55w/100w bulbs but they are still not even close
to the Hellas I installed on my Volvo. How about good driving lights? PIAA
seems to have good lights. I need them to see the deer as I travel the
roads of Pennsylvania at night.
Q3: Anyone know more information about the Quattro event at Limerock Park,
CT in August? What kinds of things do they do at these events? How abusive
is it to the car?
P.S. During a trip to San Diego in December of 1993 (yes 1993), I exited
from the Marriot to see a photo shoot going on and there was a pair of Audi
A8 Quattros! WOW! They are going to be a great car when they eventually
get here. They looked like a cross between an Infinity Q45 and the previous
style Nissan Maxima. Great interior and great lines.
------------------------------
From: glen.powell@smc.com
Date: 20 Jul 1995 11:48:28 -0400
Subject: Re: Re[4]: WOT accessory cutoff switch
Could you ground the field wire to kill the load
instantly without damaging the alternator?
-glen
------------------------------
From: "Graydon D. Stuckey" <graydon@apollo.gmi.edu>
Date: Thu, 20 Jul 1995 12:48:28 -0400 (EDT)
Subject: Re: A/C programmer & GM
On Thu, 20 Jul 1995, Jerry FIELDS wrote:
> My question: Has anybody looked at the Caddy A/C programmer? Is it
> worth the trip for me to pull one off and see if they use the same (or
> similar) board, relays, motor? Any information would be welcome!
Jerry,
The A/C parts really are Delco parts, but may not be identical to
the GM parts, as programming and calibration may be different. That
_should_ be in the control head, not the programmer however. My manager
worked on the Audi Delco HVAC stuff a few years ago. Some day I might
install an electronic HVAC climate control out of an Aurora. It's lots
more advanced than what we have in the Audi. Things like solar load
compensation and dual zone temperature control are really nice.
Later,
Graydon D. Stuckey
graydon@apollo.gmi.edu
'86 Audi 5000 CS Turbo Quattro, GDS Racing Stage 1
'83 Mazda RX7 w/13B, GDS Racing Stage 58474
------------------------------
From:
Date:
Subject: [none]
------------------------------
From: Dan Simoes <dans@ans.net>
Date: Wed, 2 Aug 1995 12:23:53 -0400 (EDT)
Subject: problem with digest
It seems there was a permission problem with the digest that I missed
after the crash. Hopefully it's fixed now. Thanks to all who
mailed me about the outage.
| Dan |
- --
Dan Simoes dans@ans.net
ANS CO+RE Systems, Inc. http://coimbra.ans.net/dans.html
100 Clearbrook Road (914) 789-5378 (voice)
Elmsford, NY 10523 (914) 789-5310 (fax)
------------------------------
From: glen.powell@smc.com
Date: 02 Aug 1995 12:43:31 -0400
Subject: Re: Pro Rally, Rumford
Welcome to Pro Rally! It sounds like you got a "high quality"
introduction! I found it very pleasantly surprising how
"approachable" these pros are, including the legendary
John Buffum. I think you were *very lucky* with the
rock incident..... Say HI! to Chris for me if you see him soon.
-glen
------------------------------
From: glen.powell@smc.com
Date: 02 Aug 1995 12:49:28 -0400
Subject: Re: Bearings bad on a 87 4000CSq?
Yep, wheel bearings. Unless you are planning to keep
the car "forever" or race it, I would just replace the one
bad bearing. There is really no benefit in reduced labor
in doing them all at the same time
and these things can last or go bad very randomly.
They also give you plenty of notice and won't leave you
stranded if (when) another goes bad.
-glen
------------------------------
From: glen.powell@smc.com
Date: 02 Aug 1995 12:53:39 -0400
Subject: Re: OOOOWWW-D OVR race
COOL! GOOD WORK!
You beat a DSP 4000s with your "heavy" 4000Q. Awesome!
( I'm not surprised :)
You need to verify that you are at full max negative camber
relative to the tire problems, if you have not already. I got
almost 2 years of auto-x, about 15 events, plus 4 days at
Lime Rock on one set of yok RS IIs. I'll be running a used
set of BFG R1s at NHIS on Saturday. I'll report back with any
problems noted, but they won't be abused the way auto-x
courses abuse tires.
-glen
------------------------------
From: glen.powell@smc.com
Date: 02 Aug 1995 12:58:58 -0400
Subject: Re: Brake Booster Help!
Almost fer sure the brake pressure accumulator is bad.
Your mechanic should have been able to diagnose
this correctly......I'd be pissed.....$600 for the booster.....
-glen
------------------------------
From: glen.powell@smc.com
Date: 02 Aug 1995 13:19:12 -0400
Subject: Re: Brakes-82TQC
Feel (carefully) the relative temperature of all four wheels
in the area of the center of the wheel. If one is very hot
compared to the others you may have a sticky caliper.
This is relatively common on older vehicles when
having just installed new pads. Corrosion builds up
on the cylinder wall of the caliper and when you compress
the caliper to install the new pads you force the piston
back over the corrosion, where it has not been for a
long time, and this can cause the piston to stick or
seize. If all wheels are equally hot, then perhaps it
might be the MC. I just had this same problem (caliper)
on the '84 4000Q after installing new rear pads, one
caliper stuck and was instantly diagnosable via the
relative wheel-time trick. New caliper was required.
BOL,
-glen
------------------------------
From: glen.powell@smc.com
Date: 02 Aug 1995 13:43:20 -0400
Subject: Re: more on '87 TQW idle problem?
The idle stabilization problem was sloved (mostly)
with replacement of the stabilizer valve. The hunting
idle is gone, but a new, intermittant stalling problem
has now been observed and has yet to be diagnosed.
Thanks to all that suggested replacing the valve!
Perhaps the new valve is faulty.....
-glen
------------------------------
From: "Barton P. Chambers" <bartonc@infi.net>
Date: Wed, 2 Aug 1995 13:10:57 -0400
Subject: Re: Motor dropping ......
Glen, with his usual wisdom, ponders:
> Cranking the boost up to get 300+ HP? Where are all those
> blown motors? :)
>
> Oh, those "Porsche" 924 4-cylinder engines
> *are* Audi engines!
Yawohl! But the (944 and ) 951 (turbo 944) is a "whole nother" beastie.
Heads
are the same as one bank of the 928, and it uses dual counter-rotating
balance
shafts (Mitsubishi patent, alas...). Unlike the 924, which is *Audi*
engine/tranny, designed and built in Nekarsulm (*Audi*), the 944
engine/tranny
is all Porsche. The later 924S is a 944 without the fender flares (cheaper
and
better Cd, so faster too).
(note two occurances of *Audi* in this response...)
Yer Kindly ol' Unka Bart
------------------------------
From: Michael Spiers <mikes@specnet.com>
Date: Wed, 2 Aug 1995 14:36:01 -0400
Subject: Do you just belong?
I was digging through my folders at lunchtime and came across this. This was
posted to another mailing list I'm on quite some time ago, somehow it never
made it to Quattro...
"Are you an active member,
the kind that would be missed
or are you just contented
that your name is on the list?
Do you attend the meetings,
and mingle with the flock,
or do you stay at your office
and criticize and knock?
Do you take and active part
to help the work along?
or are you satisfied to be
the kind that just belongs?
Do you ever work on committees
to see if there is no trick,
or leave the work to just a few
and talk about the clique?
so come to meetings often,
and help with hand and heart:
Don't be just a member
but take an active part.
Think this over, brother,
you know right from wrong,
Are you an active member.
Or do you just belong?"
- - -author unknown
*******************************************************************************
*****
For the Glory-
mikes@specnet.com
mks107@psuvm.psu.edu
1980 International Scout II (Turbo Diesel)
1980 International Scout II (Chevy small block, 9" lift, 35" Mud Terrains)
1987 Audi 5000CS Turbo Quattro (Intended Accleration, K&N, GDS Racing)
*******************************************************************************
*****
------------------------------
From: higginst@nimo.com
Date: Wed, 02 Aug 95 14:49:45 est
Subject: Re: Radio adventure....
<<<<<Lots of stuff deleted>>>>>
Tak Cheung wrote:
>Now, anyone wonders why Audi or other car dealers get such bad
reputations ?
...regarding a radio runaround.
I had the exact opposite experience last year. One channel of the
Bose (Blaupunkt) tape deck didn't work, so I called Finnegan Audi in
Syracuse. Dave (nice guy) said "$80 buck for a reman, 5 minutes to
install, no code on remans" and he kept his word. Did it right in the
parking lot. Thing of beauty.
PS: I swear I will never mention splitting the group in two again!
Tom Higgins
HigginsT@nimo.com
90 100
------------------------------
From: Nick Deutsch <deutscn@Operatns.mohawkc.on.ca>
Date: Wed, 2 Aug 1995 14:52:09 -0400 (EDT)
Subject: Re: Still looking at 200s...
Here is my 2 penny`s worth in the matter. My 1990 90 20 valve has 168.00
km on it, aapprox. same as the one you are considering. It is in GREAT
shape, and I fully intend to keep it for maybe another 2 years.
Yes, I would take it to a very reliable Audi dealer for a thorough
check-up and if the result is OK, go for it. Audis are great cars;
however you need to have a little reserve cash for future expenses.
------------------------------
From: Michael Spiers <mikes@specnet.com>
Date: Wed, 2 Aug 1995 15:43:25 -0400
Subject: Re: Motor dropping ......
On Aug 2, 1:10pm, Barton P. Chambers wrote:
> Unlike the 924, which is *Audi*
> engine/tranny, designed and built in Nekarsulm (*Audi*), the 944
engine/tranny
> is all Porsche. The later 924S is a 944 without the fender flares (cheaper
and
> better Cd, so faster too).
This conversation is beginning to pique my curiosity. A friend of mine has
beentrying to unload his '77 924 on me for the better part of four years. The
thing has a warped head, and he has no interest in fixing it. The car is in
pretty much perfect condition, 'cept it don't run... Can I deam from this
discussion that the motor in his 924 is the same motor as is in the 4000's?
How about my sisters '90 80? And the VW Golf's, for that matter? I have
plenty of access to any of the above motors and parts... Enquiring minds want
to know!
- --
- -Mike
87 5000CS TQ
84 5000S (2,000 miles away and a mile high)
------------------------------
From: bruceh@garlic.com (Bruce Hochuli (Ventana Computer Corp.))
Date: Wed, 2 Aug 1995 13:39:24 -0700 (PDT)
Subject: ur-Quattro Wanted
Hello All,
My mechanic is looking for an ur-Quattro, preferably
in Northern California but is open to others.
I wish to encourage this behavior, please reply to
me and I will relay.
Thanks,
Bruce Hochuli 82TQC
------------------------------
From: "Al Powell" <APOWELL@agcom.tamu.edu>
Date: Wed, 2 Aug 1995 15:50:32 CDT
Subject: Reply-to: a-powell1@tamu.edu
unsubscribe quattro a-powell1@tamu.edu
********** A Washington State Cougar in Aggieland (aTm) **********
Al Powell Voice: 409/845-2807
Ag Communications Fax: 409/862-1202
Texas A&M University Email: a-powell1@tamu.edu
W3 page - http://agcomwww.tamu.edu/agcom/rpe/alpage.htm
Def: Bureaucrat - any person who has to dial "9" to get an outside
phone line. (like me.......)
*******************************************************************
------------------------------
From: "Al Powell" <APOWELL@agcom.tamu.edu>
Date: Wed, 2 Aug 1995 16:08:41 CDT
Subject: Do You Drive a 1990 200T?
IF you drive a 1990 200T with any transmission problem, I'd like to
hear from you!
The reason - as I have posted recently, my 1990 200T has developed a
problem with the automatic transmission - when it's hot, reverse won't
engage...not even after idling for 30+ seconds. (It does engage when
cold, but often takes a couple of seconds even then...) I only have
63K on this car, which, IMO, is ridiculously low mileage to develop a
problem like this.
Today, I got an email from a SECOND person on this group with a 1990
200T, and he has the same, identical problem! Hmmmm!
So - - we're starting to wonder if there's something manufacturing-
related here, and whether we might be able to generate some leverage
with Audi to get help on the repair.
PLEASE respond if your car matches our model year and has any
possibly related problem. Thanks!!
********** A Washington State Cougar in Aggieland (aTm) **********
Al Powell Voice: 409/845-2807
Ag Communications Fax: 409/862-1202
Texas A&M University Email: a-powell1@tamu.edu
W3 page - http://agcomwww.tamu.edu/agcom/rpe/alpage.htm
Def: Bureaucrat - any person who has to dial "9" to get an outside
phone line. (like me.......)
*******************************************************************
------------------------------
From: morphy@alumni.caltech.edu (Jones M. Murphy, Jr)
Date: Wed, 2 Aug 1995 22:27:00 GMT
Subject: Re: ur-Quattro Wanted
bruceh@garlic.com (Bruce Hochuli (Ventana Computer Corp.)) writes:
>Hello All,
>My mechanic is looking for an ur-Quattro, preferably
>in Northern California but is open to others.
>I wish to encourage this behavior, please reply to
>me and I will relay.
>Thanks,
> Bruce Hochuli 82TQC
What does "ur-" mean? I'm looking for a Quattro myself, so also reply to me,
especially if you're near New York City.
Jones
------------------------------
From: "Rich Andrews" <rich@pony.cis.smu.edu>
Date: Wed, 2 Aug 1995 17:40:26 -0500
Subject: Re: Do You Drive a 1990 200T?
On Aug 2, 4:08pm, Al Powell wrote:
> Subject: Do You Drive a 1990 200T?
> IF you drive a 1990 200T with any transmission problem, I'd like to
> hear from you!
>
> The reason - as I have posted recently, my 1990 200T has developed a
> problem with the automatic transmission - when it's hot, reverse won't
> engage...not even after idling for 30+ seconds. (It does engage when
> cold, but often takes a couple of seconds even then...) I only have
> 63K on this car, which, IMO, is ridiculously low mileage to develop a
> problem like this.
>
> Today, I got an email from a SECOND person on this group with a 1990
> 200T, and he has the same, identical problem! Hmmmm!
>
> So - - we're starting to wonder if there's something manufacturing-
> related here, and whether we might be able to generate some leverage
> with Audi to get help on the repair.
>
> PLEASE respond if your car matches our model year and has any
> possibly related problem. Thanks!!
>
>
>
Al,
I have a 1990 200T and it has the same problem. My car was
made in April of 1990. That my provide a clue.
rich
- --
Rich Andrews | "I will not be stamped, indexed,
UNIX Systems Administrator | filed, briefed, debriefed or numbered.
Southern Methodist University | My life is my own."
------------------------------
From: "Bob D'Amato" <Bob.Damato@snetlink.com>
Date: Wed, 2 Aug 1995 19:08:47 -0400 (EDT)
Subject: Re: ur-Quattro Wanted
On Wed, 2 Aug 1995 morphy@alumni.caltech.edu wrote:
> > Bruce Hochuli 82TQC
>
> What does "ur-" mean? I'm looking for a Quattro myself, so also reply to
me,
> especially if you're near New York City.
> Jones
>
Hmmm.. would consider parting with my cherry '83 TQC for the right price...!
Bob
___ __ ___ ___ __
/ _ )___ / / / _ \/ _ | __ _ ___ _/ /____
/ _ / _ \/ _ \ / // / __ |/ ' \/ _ `/ __/ _ \
/____/\___/_.__/ /____/_/ |_/_/_/_/\_,_/\__/\___/
bob.damato@starfleet.itc.snetlink.com |Phone:203.771.7081
|Fax: 203.773.3398
The Southern New England Telephone Co. |Pager: Yeah, Right...
300 George St. New Haven, CT 06510
Information & Technology Center
http://starfleet.itc.snetlink.com/audi/audi.html
------------------------------
From: LToy@aol.com
Date: Wed, 2 Aug 1995 19:11:55 -0400
Subject: Re: Motor dropping ......
Unka Bart writes:
>Yawohl! But the (944 and ) 951 (turbo 944) is a "whole nother" beastie.
>Heads are the same as one bank of the 928, and it uses dual counter-rotating
>balance shafts (Mitsubishi patent, alas...). Unlike the 924, which is
*Audi*
>engine/tranny, designed and built in Nekarsulm (*Audi*), the 944
>engine/tranny is all Porsche. The later 924S is a 944 without the fender
flares
So the real question is, how easy will the 944 or 951 motor bolt up to the
Audi bellhousing? Imagine--a 2.5L 4cyl w/ 150--158, 217-250 in turbo form.
And the non-turbo S2 motor--3L 4cyl w/ 208hp! Are we talking trivial, or
major reconstructive surgery?
>(cheaper and better Cd, so faster too).
Than an Audi? sign me up! :)
linus toy
ltoy@aol.com
------------------------------
From: tblank@teleport.com (Ted Blank / Webworks)
Date: Wed, 2 Aug 1995 16:20:01 -0700
Subject: Momentary power loss
I just got my 875KCSTQ back from the shop. They replaced the exhaust
manifold, power steering pump, and fuse box. (big $$$). During the test
drive we encountered something new that has them stumped.
When accelerating, the engine will totally shut down for just a second at
about 3500-4000 rpm. It kicks right back in and is smooth as the revs keep
climbing.
It seems electrical rather than mechanical or fuel related. Current suspect
is the vacumn selenoid associated with the turbo (please excuse my lack of
specificity, I'm pretty new at this)
Your thoughts, ideas, and suggestions are eagerly anticipated.
Thanks in advance
Ted Blank
------------------------------
From: ti@bazooka.amb.org (Ti Kan)
Date: Wed, 2 Aug 1995 16:02:42 -0700 (PDT)
Subject: Re: Motor dropping ......
Michael Spiers writes:
> Can I deam from this
> discussion that the motor in his 924 is the same motor as is in the 4000's?
> How about my sisters '90 80? And the VW Golf's, for that matter? I have
> plenty of access to any of the above motors and parts... Enquiring minds
want
> to know!
No. Although the 924 has an Audi engine, it isn't an engine that
Audi or VW has used in its own models. Some of the engine parts
and tools are common or similar to the other water-cooled VW/Audi cars,
though.
- -Ti
- --
/// Ti Kan Windows 95 < Macintosh 89 < UNIX 70
/// AMB Research Laboratories, Sunnyvale, CA. USA
/// Internet: ti@amb.org
////// UUCP: ...!uunet!bazooka!ti
/// URL: ftp://ftp.netcom.com/pub/tk/tkan/www/tikan/tikan.html
------------------------------
From: steveb@newkla.kla.com (Steven Buchholz)
Date: Wed, 2 Aug 95 18:00:19 PDT
Subject: Re: Momentary power loss
> I just got my 875KCSTQ back from the shop. They replaced the exhaust
> manifold, power steering pump, and fuse box. (big $$$). During the test
> drive we encountered something new that has them stumped.
>
> When accelerating, the engine will totally shut down for just a second at
> about 3500-4000 rpm. It kicks right back in and is smooth as the revs keep
> climbing.
>
> It seems electrical rather than mechanical or fuel related. Current suspect
> is the vacumn selenoid associated with the turbo (please excuse my lack of
> specificity, I'm pretty new at this)
>
I would suspect that one of the sensors to the ECU is faulty or perhaps
your wastegate is a little sticky and causing a temporary overboost sit-
uation. Do you notice a higher than normal boost under acceleration?
One other thing that just came to mind ... grounding. If the ground from
the ECU to the intake manifold is flaky the ECU can get some faulty sig-
nals and go into limp-home mode for a second. I've never had the problem
myself with the '88 5kCSTQ, but on the '83 QTC I have had several occur-
rences of bad grounds or sensor inputs that cause the ECU to set the rev
limit @ 4K.
HTH!
Steve Buchholz
s_buchho@kla.com
------------------------------
End of Quattro Digest V2 #365
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