[V8] Restarting when warm

[CB&D, LLC]

The V8 doesn't seem to like being started and shut off without
driving it.  It may have just been flooded.
 
I had very similar problems with the 2111 code and the car to run
poorly.  I too switched sensor positions and made the problem go
away.  The car may be more sensitive to the RPM sensor signal than
the CPS because the car started OK.



I changed them with inexpensive Audi 5000 sensors from Rockauto.
The sensors came in "standard auto parts" boxes , but had audi rings
and part numbers.

__________________________________________

Jeff

-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On
Behalf Of Dustin Carter
Sent: Friday, June 02, 2006 12:03 AM
To: v8 at audifans.com
Subject: [V8] Restarting when warm

So I decided to take the car for a drive tonight to see if it would
stay running.
Prior to the drive I let it idle in the garage to try heat soaking
the sensors.  It worked as the car would not restart.  I let it cool
a bit and then squirted some water around the sensors to cool them
off a bit.  This worked and the car started and ran just fine for
the test drive.  I got home, shut it down and let it sit for a bit
less than a minute.  It started back up.  So I left it running in an
attempt to again heat soak the sensors.  Every time I shut it down,
it would restart.  So I shut it down and let it sit for about 2.5
hours.  Now it refuses to start.  The codes still indicate that the
crank angle sensor is bad.  I'm also seeing a 2342 oxygen sensor
code, but I think it's unrelated...

Is the starting when hot, but failing to start when cool still
indicative of a bad hall sensor or should I start looking into other
possibilities?  I have a new sensor on its way, but would like to
get started looking into other possible causes as soon as possible,
if necessary.

Thanks,
Dustin



-----

Sounds like it to me as well.  Having it in the "no-start position"
is a better place for the bad one because it only needs to be cool
to let you start the car.  If the problem occurs after only a short
stop, you can pour water just inboard of the driver's side
distributor cap to cool it off to get it started again.

Ed

> -----Original Message-----
> From: v8-bounces at audifans.com
> [mailto:v8-bounces at audifans.com] On Behalf Of Dustin Carter
> Sent: Wednesday, May 31, 2006 7:11 PM
> To: v8 at audifans.com
> Subject: [V8] Restarting when warm
> 
> 
> Hi Guys,
> 
> I've got a bit of a problem.  Sunday I was headed on a trip up to
some 
> wineries when all of a sudden the car up and dies.
>  Up to this point it had been running great.  I was kind of hot 
> footing it through a nice twisty section and had just backed off
and 
> resumed a more appropriate pace when the problem occurred.  I had
a 
> problem with these exact symptoms a while back which turned out to
be 
> the fuel pump.  So I took a guess that this might be the case
again.  
> After rolling the beast off of the flatbed I decided to see if it 
> would start.
> Much to my surprise and thoughts of ensuing unpleasantness, she 
> started right up.  I pulled it into the garage, shut it down and
tried 
> to start 'er again...started just fine.  So, Monday rolls around
and I 
> decide I'd better see if a trip is possible as I'll have to leave
my 
> house at 4:30am Tuesday morning to take my friend back to the
airport.  
> Started and ran just fine...for a little while.
> 
> Observations while trying to get back to the house:
> 
> 1. Engine seems really warm
> 2. Upper rad house is very hot, lower is quite cool 3. Pulling
codes 
> reveals a 2111
> 
> I pulled the t-stat out to verify that it would open in a pot of 
> boiling water...it does.  I removed the speed and crank angle
sensors, 
> cleaned them up, tested resistance (1k seen of
> DMM) and reinstalled them.  I swapped one for the other when 
> installing them.  Now the car seems to run just fine...at least in
the 
> garage (I haven't taken a road test as yet).
> However, it refuses to restart if I shut it down and the code is
now 
> registered as 2112.  I think that is exactly what I wanted to see.
So 
> I'm thinking that I have a bad sensor (same sensor in 2 locations
give 
> 2 codes).  Do you guys think this sounds right?
> 
> Thanks,
> Dustin
> '90 V8Q


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