Investigation further

Mon Sep 27 15:24:36 PDT 2010

Is the reley resting open or closed with batter connected and ignition off. Is it using a ground trigger instead of 12V? Is the fuel pump ground poor?

My 2c

Doc

Sent from my Palm Pre.&nbsp;On Sep 27, 2010 9:00 AM, 200q20v-request at audifans.com &lt;200q20v-request at audifans.com&gt; wrote: 

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Today's Topics:

   1. RE: '91 Avant suspension rubber part numbers

      (kneale at knitknacks.com)

   2. Investigation further[ Fusebox internals - map/diagram]

      (Ben Swann)

   3. leak down (feelstranger)

   4. Re: leak down (Bernie Benz)

   5. Re: leak down (robert weinberg)

----------------------------------------------------------------------

Message: 1

Date: Sun, 26 Sep 2010 18:21:39 -0400

From: "kneale at knitknacks.com" &lt;kneale at knitknacks.com&gt;

Subject: RE: '91 Avant suspension rubber part numbers

To: gsidman at webloq.com,  200q20v at audifans.com

Message-ID: &lt;380-220109026222139623 at M2W119.mail2web.com&gt;

Content-Type: text/plain; charset=iso-8859-1

Keep scrounging, but there probably will be differences between UFO and G60

front end bushings.  Also, I have a faint memory of some stuff, especially

in the rear, being NLA.  

Original Message:

-----------------

From: George gsidman at webloq.com

Date: Sun, 26 Sep 2010 10:18:15 -0700

To: 200q20v at audifans.com

Subject: '91 Avant suspension rubber part numbers

Before I rummage around to assemble a list, does anyone have a list of all

the part numbers for the rubber suspension components - both front and rear

- for a '91 200 Avant 20 valve..???

George Sidman

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Message: 2

Date: Mon, 27 Sep 2010 00:34:26 -0400

From: "Ben Swann" &lt;benswann at verizon.net&gt;

Subject: Investigation further[ Fusebox internals - map/diagram]

To: &lt;audi at humanspeakers.com&gt;,	"'John Cody Forbes'" &lt;cody at 5000tq.com&gt;

Cc: quattro at audifans.com, '200q20V mailing list'

	&lt;200q20v at audifans.com&gt;

Message-ID: &lt;71CB33CEFB2B415885FA1BD1E285E993 at swansong&gt;

Content-Type: text/plain; charset=US-ASCII

OK - I have been poring over wiring and connectivity to figure out why the engine does

not start and run.

Recap for those who are interested:

ABY "S2" engine installed with ABY wiring harness.  All connections for the harness are

to the fusebox per factory.  Ancilleries like instrument cluster - Tach, etc. are left

unconnected.

On Crank, the fuel pump does not run.  Checking obvious suspects starting with Hall

Voltage and operation - that is good and switching.  

Diagnostics attempted both by wiring for VAG-COM and simple LED test hookup do not work.

The LED lights when switch on with ECU but not signaling.  I did verify all wiring is

connected properly -  OBD power +/-, OBD K/L, OBD blink.

I don't want to just plug another ECU in since if wiring is incorrect and full voltage

on wrong pin could concievably be damaging the ECU.  So I checked all harness pins at

connector w/o ECU:  

First testing all 55 pins w/r ground no battery negative connected: Pins 7, 10, 14, 19,

24, 26, 52 showed some connection to ground.

With battery connected: checked for voltages reveal: 12V on harness pin 18 - that is the

unswitched power supply so OK.   What did not make sense is that I saw 3V on pins 3 and

27.  Both these lead back to the Fuel Pump Relay terminal 

That corresponds to ignition on - I think, terminal 86 on the relay.  Some diagrams show

as 46.

Anyway, I'm wondering where that 3 V is coming from.  It is fairly consistant -

something in the car like a voltage regulator or the current that goes through a relay?

Is this normal?  That is if the key is off and voltage checked on the relay terminal 86

[no relay inserted] that voltage is around 3?  Would this cause a current drain or just

voltage present?

Also, I continued to test through all 55 pins again - when ignition switched on, I got

12 V where there was 3V ( pins 3 and 270 and also on pins 

18.  8.75V on  terminal 50 (vehicle speed signal - from tach)?  

Weirdness.

Ben

-----Original Message-----

From: Huw Powell [mailto:audi at humanspeakers.com] 

Sent: Saturday, September 25, 2010 11:58 PM

To: John Cody Forbes

Cc: Ben Swann; quattro at audifans.com; 200q20V mailing list

Subject: Re: Fusebox internals - map/diagram

That tests the ECU and whatever POSs are.

It doesn't actually "check for spark", though.  Bad coil, bad plug, drowned spark, you

wouldn't find them, right?

&gt; Just use a logic probe to back probe the coil connector for checking 

&gt; for spark. If the signal is getting to the coil then the ECU is doing 

&gt; it job as well as the POS's.

--

Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/

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Message: 3

Date: Mon, 27 Sep 2010 09:56:31 -0400

From: "feelstranger" &lt;feelstranger at hotmail.com&gt;

Subject: leak down

To: &lt;200q20v at audifans.com&gt;

Message-ID: &lt;BAY152-ds1061DD44D49FC43E773C5BCF650 at phx.gbl&gt;

Content-Type: text/plain;	charset="iso-8859-1"

Folks, mech. doing my valve seals indicated he's seeing 20-30% loss while pressurizing the cylinders to hold the valves in place.  Said he could hear it hissing out the dipstick tube.

How bad is that level of loss?

Car has 191K miles on it, and there was some scoring on the cams, and visible wear on the cam sprockets.

Nat

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Message: 4

Date: Mon, 27 Sep 2010 07:11:55 -0700

From: Bernie Benz &lt;b.benz at charter.net&gt;

Subject: Re: leak down

To: "feelstranger" &lt;feelstranger at hotmail.com&gt;

Cc: 200q20V mailing list &lt;200q20v at audifans.com&gt;

Message-ID: &lt;80DE7F34-D017-4246-9EB6-3A477539241A at charter.net&gt;

Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

20 / 30% of what? Makes no sense!

Did you do a compression or leak down tests on the engine?

Oil usage? Why the valve stem seals?

Bernie

On Sep 27, 2010, at 6:56 AM, feelstranger wrote:

&gt; Folks, mech. doing my valve seals indicated he's seeing 20-30% loss  

&gt; while pressurizing the cylinders to hold the valves in place.  Said  

&gt; he could hear it hissing out the dipstick tube.

&gt; How bad is that level of loss?

&gt; Car has 191K miles on it, and there was some scoring on the cams,  

&gt; and visible wear on the cam sprockets.

&gt;

&gt; Nat

&gt; _______________________________________________

&gt; 200q20v mailing list	 http://www.audifans.com/mailman/listinfo/200q20v

------------------------------

Message: 5

Date: Mon, 27 Sep 2010 10:20:34 -0700 (PDT)

From: robert weinberg &lt;centaurus3200 at yahoo.com&gt;

Subject: Re: leak down

To: 200q20V mailing list &lt;200q20v at audifans.com&gt;

Message-ID: &lt;224613.46159.qm at web53708.mail.re2.yahoo.com&gt;

Content-Type: text/plain; charset=us-ascii

i seem to remember 034 said my engine was about 5-7% when they did a leakdown. 

the compression test was in factory specs. it had 116k on the clock when they 

did the tests.

was your car run low on oil a few times or something? or lots of detonation?

Robby

________________________________

From: Bernie Benz &lt;b.benz at charter.net&gt;

To: feelstranger &lt;feelstranger at hotmail.com&gt;

Cc: 200q20V mailing list &lt;200q20v at audifans.com&gt;

Sent: Mon, September 27, 2010 7:11:55 AM

Subject: Re: leak down

20 / 30% of what? Makes no sense!