Do a resistance test of the temp II sensor from the ECU plug (see
Bentley manual).  What can be happening is that the wire going to the
temp II can go bad and cause the computer to see high resistance
(computer thinks the engine is still cold).  Also be sure your engine
grounds are clean and secure.  You need a nice ground strap from the
firewall (under your coil) to the driver's side head (under A/C
compressor).  One of the grounds on the head is for the temp II sensor
and if it is bad again the computer will see high resistance after warm
and flood the engine.

If this does not help then check the injectors as they could be leaking
or have a bad spray pattern (peeing instead of misting) that could also
cause this problem.

Hope this helps,
Ken Wilford
John 3:16
www.vanagain.com

George Averill wrote:

>Hi, everyone.  I have been away from the list for a while.
>
>About six months or so ago, I listed a problem of hard starting after my 84 Vanagon warmed up.  Thanks to everyone for their suggestions.  So far I have done the following and still have the problem.
>1.  I replaced the fuel pressure regulator.
>2.  I replaced the coil.
>3.  I replaced the ignition module.
>4.  I replaced the temperature sensor.
>
>If I start and stop while the engine is still cold, the engine starts right up with no hesitation.
>If I drive for about 15 minutes and the temp goes up to normal temp., I can stop and quickly start, but if I wait about five minutes, there is no fire at all.  I can smell gas fumes near the exhaust pipe.
>About 45 minutes or more later, the engine starts up hesitantly.
>
>So what do I check or replace next?  The engine runs great once it has started.
>
>George
>84 Vanagon
>
>
>