Audi 100 5cyl cold start problem
 

Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
cylinder 2.3 litre fuel injected engine.
you can crank it for ages and it will fire once or twice or sometimes
not fire at all and just keep cranking. This only happens when the
engine (water) is cold. If I spray ether into the intake manifold it
fires continually until I stop spraying but still will not start. I
have removed two of the fuel lines going to the injectors and there is
no fuel pumping up them but there is on the cold start fuel line. Im
not sure if thats normal or not. but if i push up the lever thingy
behind the air filter then fuel pumps very slowly up all the injector
fuel lines. help help help!!!!

Audi 100 5cyl cold start problem
 

My initial idea is to say the fuel injection relay might not be working the
contacts wear out regularly (100k) and often don't give enough power to the
pump, if it is working full on you should hear the pump kick in when you
turn the ignition on for a couple of seconds before you start it. I had a
similar problem on 100 CD similar engine set up 2226cc one. The relays are
about £20 from german and swedish if I remember rightly, however it is
possible to check this by actually bypassing this relay (not adviseable
normally but just for test purposes, I ran my car on a wired switch for
about two weeks until I managed to get a new one) as it's a safety feature
to kill the pump once the engine is not "firing" rev check. You can use a
suitable thick bit of wire between the sockets for the terminals once you
work out after taking out the relay which ones are required to hard wire
together. With the ignition on only you will hear the pump in the tank
working. If it fires with this you need a new relay. IS the spray from the
cold start very strong? The cold start is on a relay that bypasses the fuel
distibutor if I'm right and will drain any pressure in it, or the fuel valve
in the regulator is sticking. I assume you have not played with the mixture
setting or dropped anything into the plate that regulates the fuel air
mixture etc.

Give me a mail back if that doesn't help.

PAul
"sealdogfish" > wrote in message
oups.com...
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start. I
> have removed two of the fuel lines going to the injectors and there is
> no fuel pumping up them but there is on the cold start fuel line. Im
> not sure if thats normal or not. but if i push up the lever thingy
> behind the air filter then fuel pumps very slowly up all the injector
> fuel lines. help help help!!!!
>

Audi 100 5cyl cold start problem
 

I will try bypassing the relay but when i turn the key to on I can hear
the fuel pump going and fuel is definately pumping, though im not sure
how strongly. When cold starting are the 5 injectors supposed to be
working or is it just the cold start injector that goes until it starts
up properly? also can i just take out the cold start injector and turn
it on and see if it sprays?

Audi 100 5cyl cold start problem
 

I also forgot to mention that the car does start every three days or so
and once it starts and warms up it runs fine. you can turn it off and
restart it but when it cools back down it wont start again for a few
more days at least.

Audi 100 5cyl cold start problem
 

I also forgot to mention that the car does start every three days or so
and once it starts and warms up it runs fine. you can turn it off and
restart it but when it cools back down it wont start again for a few
more days at least.

Audi 100 5cyl cold start problem
 

Okay cheap fix,

go and buy a new rotor arm for the distributor and if that fixes the problem
contact bosch uk and get a new distributor. The shaft bearings wear out and
the rotor arm contacts the contacts and heats up so much it blows the
resistor as it cools and warms it contacts. If this is happening it is
usually shown up as a crack in the dark brown resin they cover the resistor
with. Have a look at it. You should also be able to rock the rotor shaft
left to right if it is warn. Does this make sense?

Paul
"sealdogfish" > wrote in message
oups.com...
> I also forgot to mention that the car does start every three days or so
> and once it starts and warms up it runs fine. you can turn it off and
> restart it but when it cools back down it wont start again for a few
> more days at least.
>

Audi 100 5cyl cold start problem
 

Makes sense but the engine is sparking perfectly without fail, unless
the distributor tells the injectors when to fire? but when its cranking
there is no fuel going up the injector lines from what i can tell, no
fuel coming out of the metal round thing that all the fuel lines bolt
into. (except for the cold start)

Audi 100 5cyl cold start problem
 

Just thought of something else. Are all of the wires connected especially
the idle valve. They could be corroded check them just pulling them off and
refitting a couple of times might help.

The rotor arm actually usually actually works the other way it will start
when cold but not hot, however I have had similar problems, I still think it
might be the fuel relay. Don't forget that once it gets going it has to keep
up the pressure and that takes more power to do so, so still try the bypass
that I suggested mine also had the cold start issue. Just tapping the relay
sometimes was enough during cranking to get it to start. If this has been
going on a while it is likely to have carbon deposits etc. You could always
take it out and take off the cover and have a look inside and see for
yourself.

By the way if it is make sure you buy the 5 cyl relaynot the 4 cylinder I
think there is an over rev cutout that will kill the engine at lower revs if
you get the wrong one.


PAul


"sealdogfish" > wrote in message
oups.com...
> I also forgot to mention that the car does start every three days or so
> and once it starts and warms up it runs fine. you can turn it off and
> restart it but when it cools back down it wont start again for a few
> more days at least.
>

Audi 100 5cyl cold start problem
 

I have a Haynes manual with test procedures etc if you would like me to scan
it and mail it to you if what I have suggested doesn't help

Paul

Take out the spaces in the email address to email me directly
"pdpass" > wrote in message
...
> Just thought of something else. Are all of the wires connected especially
> the idle valve. They could be corroded check them just pulling them off
and
> refitting a couple of times might help.
>
> The rotor arm actually usually actually works the other way it will start
> when cold but not hot, however I have had similar problems, I still think
it
> might be the fuel relay. Don't forget that once it gets going it has to
keep
> up the pressure and that takes more power to do so, so still try the
bypass
> that I suggested mine also had the cold start issue. Just tapping the
relay
> sometimes was enough during cranking to get it to start. If this has been
> going on a while it is likely to have carbon deposits etc. You could
always
> take it out and take off the cover and have a look inside and see for
> yourself.
>
> By the way if it is make sure you buy the 5 cyl relaynot the 4 cylinder I
> think there is an over rev cutout that will kill the engine at lower revs
if
> you get the wrong one.
>
>
> PAul
>
>
> "sealdogfish" > wrote in message
> oups.com...
> > I also forgot to mention that the car does start every three days or so
> > and once it starts and warms up it runs fine. you can turn it off and
> > restart it but when it cools back down it wont start again for a few
> > more days at least.
> >
>
>

Audi 100 5cyl cold start problem
 

manual though is not accessible tonight, its in the back of the garage
somewhere behind the car and I have to move the car to get at it and I've
had a drink so it will remain there until tomorrow, I only have 2 inches
either side of the car when I pull it out and I don't actually want to
scratch it!

Paul
"pdpass" > wrote in message
...
> I have a Haynes manual with test procedures etc if you would like me to
scan
> it and mail it to you if what I have suggested doesn't help
>
> Paul
>
> Take out the spaces in the email address to email me directly
> "pdpass" > wrote in message
> ...
> > Just thought of something else. Are all of the wires connected
especially
> > the idle valve. They could be corroded check them just pulling them off
> and
> > refitting a couple of times might help.
> >
> > The rotor arm actually usually actually works the other way it will
start
> > when cold but not hot, however I have had similar problems, I still
think
> it
> > might be the fuel relay. Don't forget that once it gets going it has to
> keep
> > up the pressure and that takes more power to do so, so still try the
> bypass
> > that I suggested mine also had the cold start issue. Just tapping the
> relay
> > sometimes was enough during cranking to get it to start. If this has
been
> > going on a while it is likely to have carbon deposits etc. You could
> always
> > take it out and take off the cover and have a look inside and see for
> > yourself.
> >
> > By the way if it is make sure you buy the 5 cyl relaynot the 4 cylinder
I
> > think there is an over rev cutout that will kill the engine at lower
revs
> if
> > you get the wrong one.
> >
> >
> > PAul
> >
> >
> > "sealdogfish" > wrote in message
> > oups.com...
> > > I also forgot to mention that the car does start every three days or
so
> > > and once it starts and warms up it runs fine. you can turn it off and
> > > restart it but when it cools back down it wont start again for a few
> > > more days at least.
> > >
> >
> >
>
>

Audi 100 5cyl cold start problem
 

That scan would be great, wouldnt mind a wiring diagram, anyway ill
check those things tonight when i get home from work and let you know.
thanks
Caleb.

Audi 100 5cyl cold start problem
 

All injectors should run on start up the cold start relay is only there to
add extra fuel when its cold like a choke
"sealdogfish" > wrote in message
oups.com...
> I will try bypassing the relay but when i turn the key to on I can hear
> the fuel pump going and fuel is definately pumping, though im not sure
> how strongly. When cold starting are the 5 injectors supposed to be
> working or is it just the cold start injector that goes until it starts
> up properly? also can i just take out the cold start injector and turn
> it on and see if it sprays?
>

Audi 100 5cyl cold start problem
 

Caleb,
If you can hear the fuel pump running, and you're having a fuel delivery
problem (manually lifting plate does not provide full flow to injectors), I
would check the following:
- replace the fuel filter
- if fuel delivery is still a problem, there may be problems with the fuel
pump pre-filter (a screen mounted on the intake of the pump - may get
clogged with dirt), or fuel distributor problem.
The Bentley Manual has a diagnostic procedure that you could follow, as well
as Scott Mockry's site at:
http://www.sjmautotechnik.com/troubl...ing/ficis.html
Cheers!
Steve Sears
1987 Audi 5kTQ
1980 Audi 5k
1962 and '64 Auto Union DKW Junior deLuxes
(SPAM Blocker NOTE: Remove SHOES to reply)

"sealdogfish" > wrote in message
oups.com...
> That scan would be great, wouldnt mind a wiring diagram, anyway ill
> check those things tonight when i get home from work and let you know.
> thanks
> Caleb.
>

Audi 100 5cyl cold start problem
 

Well I have temporarily resolved the problem, I was just buying this
car last night so I wanted to make sure the problem wasnt too terrible
before i bought it. It turns out the cold start injector was not
getting any power and to make matters worse i mustve knocked the
distributor feedback plug out but i found that early enough. So i
shorted the injector straight to the battery when cranking and for a
short while afterwards and it worked flawlessly (although a slightly
rich mixture for a few seconds) So now my only problem is to find out
why there is no voltage to the cold start. The temperature guage is
also not working which i will have to sort out.
Anyone got any ideas on why it would stall when stopped and in gear
with the brake on? only did this twice in a 40 minute drive.

Audi 100 5cyl cold start problem
 

I will also note that on the drive home it was absolutely wonderful. I
love this car so far and for $850 NZD ($450US) I think it was well
worth it. everything is in mint condition with full service history.
140,000ks

Audi 100 5cyl cold start problem
 

if you were daft enough to run the fuel pump in a no lubricating medium such
as water you deserve to have spent 30o bucks for doing so. It is a fuel pump
not a water pump. You obviously wrecked the rubbers which are "tuned" to the
fluid they are supposed to pump!


"BBO" > wrote in message ...
> "sealdogfish" > writes:
>
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start.
>
> If you are able to start and have the car "run" on ether, there is nothing
> wrong with the ignition system, but the car isn't getting any fuel.
>
> How long is it since the fuel-filter have been changed? It might be
> clogged so badly that the pump cannot get enough pressure. On my car the
> fuel pressure should be around 4 bar.
>
> Sounds like the fuelpump have gone bye bye. Usually you will be able to
> hear it going, but it isn't delivering enough pressure. Had the exact
> same problem on my car. A '93 Audi 100 2.3E.
>
> I first tested the assuption with taking out the pump and cleaned it in
> a bucket of water while applying power to it. I then washed the pump
> with brake cleaning fluid in the same manner. I let it dry and
> reinstalled.
>
> The car would then start, but the pump sounded like a hive of bees so I
> changed it for a new one. It cost me around US $300. Also: Change the
> fuel-filter if you change the fuel-pump. If not you'll have the same
> trouble in very short time.
>
> --
>
> ------------------------------------------------------------------------
> Wenn im Zweifel, Volleistung! DoD#2101
> '93 Audi 100 2.3E When in doubt, floor it!

Audi 100 5cyl cold start problem
 

It still could be expensive 1991 ? but still only 80K Miles is nothing
sounds like blockages, but I would also suggest you clean out the pipes that
run the air / rocker cover / vacuum and especially the venturis (do it with
solvent not poke things in there. If the Idle stabilisation circuit has
blown itself and there could be melted wires back to it if any have been
subjected to heat at any time and contacted earth there will be. The
original circuits were built of discreet components and probably will be
okay but the wires might have let go. There are extra wires on most of these
cars for cruise control and turbo connections that flap about you may need
to run new wires and this might help. Also check that the temperature sender
units are working and the connections are good and clean. There is one on a
2226cc unit that sits under the thermostat that I have found troublesome
that may be the one that activates the cold start injector (corrosion may be
the only reason)

They do give up and you must buy the correct ones to replace them and they
change massively on models over the range so get the chassis number to a
dealer to make sure you have the correct ones.

Paul


Thanks for the extra feed back. It sounds like you're going through the
exact same things I have been through with mine.
"sealdogfish" > wrote in message
ups.com...
> Well I have temporarily resolved the problem, I was just buying this
> car last night so I wanted to make sure the problem wasnt too terrible
> before i bought it. It turns out the cold start injector was not
> getting any power and to make matters worse i mustve knocked the
> distributor feedback plug out but i found that early enough. So i
> shorted the injector straight to the battery when cranking and for a
> short while afterwards and it worked flawlessly (although a slightly
> rich mixture for a few seconds) So now my only problem is to find out
> why there is no voltage to the cold start. The temperature guage is
> also not working which i will have to sort out.
> Anyone got any ideas on why it would stall when stopped and in gear
> with the brake on? only did this twice in a 40 minute drive.
>

Audi 100 5cyl cold start problem
 

IIRC The cold start might receive power from the starter solenoid. So check
the wiring to there and also check to see that it does get power to that
wire wihle the starter is operating.
I am not sure where it grounds out if not through a thermostatic switch.

later,
dave
(One out of many daves)


"sealdogfish" > wrote in message
ups.com...
> Well I have temporarily resolved the problem, I was just buying this
> car last night so I wanted to make sure the problem wasnt too terrible
> before i bought it. It turns out the cold start injector was not
> getting any power and to make matters worse i mustve knocked the
> distributor feedback plug out but i found that early enough. So i
> shorted the injector straight to the battery when cranking and for a
> short while afterwards and it worked flawlessly (although a slightly
> rich mixture for a few seconds) So now my only problem is to find out
> why there is no voltage to the cold start. The temperature guage is
> also not working which i will have to sort out.
> Anyone got any ideas on why it would stall when stopped and in gear
> with the brake on? only did this twice in a 40 minute drive.
>
>

Audi 100 5cyl cold start problem
 

It doesn't. but the cold start/ idle stabilisation circuit on older models
relies on several thermostatic inputs on later models I am sure that a
central control; cpu does it all and that should mean to uoi an dme scrap
yard find one.


"dave AKA vwdoc1" > wrote in message
et...
> IIRC The cold start might receive power from the starter solenoid. So
check
> the wiring to there and also check to see that it does get power to that
> wire wihle the starter is operating.
> I am not sure where it grounds out if not through a thermostatic switch.
>
> later,
> dave
> (One out of many daves)
>
>
> "sealdogfish" > wrote in message
> ups.com...
> > Well I have temporarily resolved the problem, I was just buying this
> > car last night so I wanted to make sure the problem wasnt too terrible
> > before i bought it. It turns out the cold start injector was not
> > getting any power and to make matters worse i mustve knocked the
> > distributor feedback plug out but i found that early enough. So i
> > shorted the injector straight to the battery when cranking and for a
> > short while afterwards and it worked flawlessly (although a slightly
> > rich mixture for a few seconds) So now my only problem is to find out
> > why there is no voltage to the cold start. The temperature guage is
> > also not working which i will have to sort out.
> > Anyone got any ideas on why it would stall when stopped and in gear
> > with the brake on? only did this twice in a 40 minute drive.
> >
> >
>
>

Audi 100 5cyl cold start problem
 

I promise if I can with help set up a page on the internet to give this
information for free with a scanned image of the Hayenes manual with all
rights reserved to all authourity in respect of the fact that the Audi
company made this car and place the test schedules for this car online
inrespect of the fuel problems etc. I think that any car that is 12 years
old should havr all aspects of thier design "liberated" for the benefit of
us that want them to be. IF a CAR has a 6 year lifespan or guarantee the
desiign should be free to anyone that wants to fix it. Lets make **** to
last. ANyway I #ve had a drink. I love my car and don't have a curent
girlfriend to prove it.

AUDI 100 CD AUTO 2226cc shagged bx no information I love this car and I will
not let her die



"sealdogfish" > wrote in message
oups.com...
> Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> cylinder 2.3 litre fuel injected engine.
> you can crank it for ages and it will fire once or twice or sometimes
> not fire at all and just keep cranking. This only happens when the
> engine (water) is cold. If I spray ether into the intake manifold it
> fires continually until I stop spraying but still will not start. I
> have removed two of the fuel lines going to the injectors and there is
> no fuel pumping up them but there is on the cold start fuel line. Im
> not sure if thats normal or not. but if i push up the lever thingy
> behind the air filter then fuel pumps very slowly up all the injector
> fuel lines. help help help!!!!
>

Audi 100 5cyl cold start problem
 

SO I was and still am ****ed I love you all why not since the whole wolrd is
intent on trying to argue god for some reason but not me why don't you
alljust chill out and be human beings and just restrict yourdself to knowing
say 80 people at a time as opposed to 150 at a time and getting level 5 kill
everybody you you ****ing idiouts .I like science let me live. I do not like
lots of people make them go away please even american christian
fundamentalists look good today and I do not them. Hey lets burn the world
oil one day the empire will be run by the energy controllers like it isn't
now

sorry guys just a quick rant felt like the only place I could these days the
internet you know


not controlled by the nutters


"pdpass" > wrote in message
...
> I promise if I can with help set up a page on the internet to give this
> information for free with a scanned image of the Hayenes manual with all
> rights reserved to all authourity in respect of the fact that the Audi
> company made this car and place the test schedules for this car online
> inrespect of the fuel problems etc. I think that any car that is 12 years
> old should havr all aspects of thier design "liberated" for the benefit of
> us that want them to be. IF a CAR has a 6 year lifespan or guarantee the
> desiign should be free to anyone that wants to fix it. Lets make **** to
> last. ANyway I #ve had a drink. I love my car and don't have a curent
> girlfriend to prove it.
>
> AUDI 100 CD AUTO 2226cc shagged bx no information I love this car and I
will
> not let her die
>
>
>
> "sealdogfish" > wrote in message
> oups.com...
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start. I
> > have removed two of the fuel lines going to the injectors and there is
> > no fuel pumping up them but there is on the cold start fuel line. Im
> > not sure if thats normal or not. but if i push up the lever thingy
> > behind the air filter then fuel pumps very slowly up all the injector
> > fuel lines. help help help!!!!
> >
>
>

Audi 100 5cyl cold start problem
 

SO I was and still am ****ed I love you all why not since the whole wolrd is
intent on trying to argue god for some reason but not me why don't you
alljust chill out and be human beings and just restrict yourdself to knowing
say 80 people at a time as opposed to 150 at a time and getting level 5 kill
everybody you you ****ing idiouts .I like science let me live. I do not like
lots of people make them go away please even american christian
fundamentalists look good today and I do not them. Hey lets burn the world
oil one day the empire will be run by the energy controllers like it isn't
now

sorry guys just a quick rant felt like the only place I could these days the
internet you know


not controlled by the nutters


"pdpass" > wrote in message
...
> I promise if I can with help set up a page on the internet to give this
> information for free with a scanned image of the Hayenes manual with all
> rights reserved to all authourity in respect of the fact that the Audi
> company made this car and place the test schedules for this car online
> inrespect of the fuel problems etc. I think that any car that is 12 years
> old should havr all aspects of thier design "liberated" for the benefit of
> us that want them to be. IF a CAR has a 6 year lifespan or guarantee the
> desiign should be free to anyone that wants to fix it. Lets make **** to
> last. ANyway I #ve had a drink. I love my car and don't have a curent
> girlfriend to prove it.
>
> AUDI 100 CD AUTO 2226cc shagged bx no information I love this car and I
will
> not let her die
>
>
>
> "sealdogfish" > wrote in message
> oups.com...
> > Got a major problem here kindof i think. Got a 1991 Audi 100 with a 5
> > cylinder 2.3 litre fuel injected engine.
> > you can crank it for ages and it will fire once or twice or sometimes
> > not fire at all and just keep cranking. This only happens when the
> > engine (water) is cold. If I spray ether into the intake manifold it
> > fires continually until I stop spraying but still will not start. I
> > have removed two of the fuel lines going to the injectors and there is
> > no fuel pumping up them but there is on the cold start fuel line. Im
> > not sure if thats normal or not. but if i push up the lever thingy
> > behind the air filter then fuel pumps very slowly up all the injector
> > fuel lines. help help help!!!!
> >
>
>

Audi 100 5cyl cold start problem
 

Well the fuel pump is running fine with plenty of pressure, the only
problem is the cold start injector not getting any power when cranking
and Im currently under the impression that it is a temp sensor, bad
ground or bad wiring, the computer has been replaced with no change.
the car does not 'start' on ether it just fires. once the car is
running it runs fine until you let it sit for 4 hours or so, when it
goes cold. Anyway im working on the problem and will reply once it is
fixed, now there is another issue i need to sort, see the new post.

Audi 100 5cyl cold start problem
 

Check the multi function temperture sensor. They have three or four wires
located near the upper radiator hose on the block. It is common for them to fail
and cause these problems. New ones will have only three wires. These can also
cause the temperature gage to not work.

sealdogfish wrote:
> Well the fuel pump is running fine with plenty of pressure, the only
> problem is the cold start injector not getting any power when cranking
> and Im currently under the impression that it is a temp sensor, bad
> ground or bad wiring, the computer has been replaced with no change.
> the car does not 'start' on ether it just fires. once the car is
> running it runs fine until you let it sit for 4 hours or so, when it
> goes cold. Anyway im working on the problem and will reply once it is
> fixed, now there is another issue i need to sort, see the new post.
>

Audi 100 5cyl cold start problem
 

On Tuesday, February 7, 2006 at 2:01:01 PM UTC-4, Tony wrote:
> Check the multi function temperture sensor. They have three or four wires
> located near the upper radiator hose on the block. It is common for them to fail
> and cause these problems. New ones will have only three wires. These can also
> cause the temperature gage to not work.
>
> sealdogfish wrote:
> > Well the fuel pump is running fine with plenty of pressure, the only
> > problem is the cold start injector not getting any power when cranking
> > and Im currently under the impression that it is a temp sensor, bad
> > ground or bad wiring, the computer has been replaced with no change.
> > the car does not 'start' on ether it just fires. once the car is
> > running it runs fine until you let it sit for 4 hours or so, when it
> > goes cold. Anyway im working on the problem and will reply once it is
> > fixed, now there is another issue i need to sort, see the new post.
> >

I know this is an old post but I have the exact same problem you were describing in this post. Did you ever resolve this issue???

Audi 100 5cyl cold start problem
 

> skrev i meddelelsen
> ...
>
> On Tuesday, February 7, 2006 at 2:01:01 PM UTC-4, Tony wrote:
>> Check the multi function temperture sensor. They have three or four wires
>> located near the upper radiator hose on the block. It is common for them
>> to fail
>> and cause these problems. New ones will have only three wires. These can
>> also
>> cause the temperature gage to not work.
>>
>> sealdogfish wrote:
>> > Well the fuel pump is running fine with plenty of pressure, the only
>> > problem is the cold start injector not getting any power when cranking
>> > and Im currently under the impression that it is a temp sensor, bad
>> > ground or bad wiring, the computer has been replaced with no change.
>> > the car does not 'start' on ether it just fires. once the car is
>> > running it runs fine until you let it sit for 4 hours or so, when it
>> > goes cold. Anyway im working on the problem and will reply once it is
>> > fixed, now there is another issue i need to sort, see the new post.
>> >
>
> I know this is an old post but I have the exact same problem you were
> describing in this post. Did you ever resolve this issue???
>

I had this issue on my Audi 100 2.2E. It was about 17 years old at the
time. It turned out to be the gaskets on the fuel lines going into the
engine block. When cold, they would contract enough to let in false air.
Once the engine warmed up, the gaskets would form a tight seal again and the
engine would run fine. I had tried for weeks to find the problem and it
took my shop a whole week of cold starting every morning to figure out what
the problem was.

Regards,
Jan Poulsen