[urq] Hot Start Problems Continued...

[Pasqualoni, James E]

Urq.  Yes, that is my suspicion and why I ordered one a few months back.
Just have to install it now.  I hope that's all it is!

Thanks. 

-----Original Message-----
From: r0ssat0_987 at att.net [mailto:r0ssat0_987 at att.net] 
Sent: Tuesday, May 02, 2006 10:31 AM
To: Pasqualoni, James E; urq at audifans.com
Cc: 'Perron, Bill'; 'pkrasusky at ups.com'; 'Sports Car Workshop'
Subject: Re: Hot Start Problems Continued...

Which car is this on, UrQ or 5kq?  My first bet is the check valve at the
fuel pump.


 -------------- Original message ----------------------
From: "Pasqualoni, James E" <james.pasqualoni at gs.com>
> The Symptoms:
> When cold, car starts immediately upon cranking.  Runs great with no
issues.
> Idle is strong and steady at 850 rpm.
> 
> Hot Starts:
> When attempting a hot start, after the car has been sitting for a few 
> minutes, it immediately catches, stumbles, then stalls.  Car will 
> continue cranking with good spark, but there appears to be some vapor 
> lock or flooding-not sure.  No strong smell of gas at all.
> 
> What's Been Done:
> -New 85 deg C injector cooling fan thermo switch.  Injector cooling 
> fan works fine -New vacuum thermo switch (the one on the block near 
> the ig distributor -Checked for vacuum leaks-none found
> 
> What should I pursue next?  I was leaning towards fuel pump check 
> valve, then injectors.  Does this make sense?  I don't believe that 
> there are any vacuum leaks, however, I will keep checking this as well.
> 
> Thoughts, suggestions, please?
> 
> TIA,
> Jim