When I had an '84 it would occasionally stall and not restart.  I think
it was a heat soaked temp sensor that would cause the engine to go so
lean it could not restart.  Happened once it heavy street traffic in
Seattle, not fun.  Usually would happen if I stopped to get the mail
pulling into my driveway.  In my case it would start after trying it for
5-10 minutes.  To be clear it would crank (turn over) but not catch.

Substituting a 250-270 ohm resistor into the harness connector and
seeing if it helps would be a good diagnostic test for this, and
everyone with an injection system that uses a temp sensor should have
such a resistor in their spare fuse box.  You simply bend the tabs like
this: http://i58.photobucket.com/albums/g243/budgetzagato/IMG_9804.jpg

Hope this helps.

Gregory Smith
'88 Vanagon GL

Smith Design Studio
Small Building Company
Olympia, WA
360-239-0429
gregoryfsmith.com

-------- Original Message --------
Date: Mon, 3 Sep 2012 20:52:46 -0400
From: George Averill <averill@MCHSI.COM>
Subject: Still need HELP with hot start problem 84 Vanagon!
All,
Well, I need some more help. I thought I had the problem solved, but it
=
seems I don't. If I keep replacing items, I may soon have a new bus!
The problem is that the van will not start for about 45 minutes after it
=
reaches running temperature and I turn it off. It runs great while it =
is running. Cold start is not a problem. No problems at all. If I =
drive about 20 miles and go in a store, when I return it won't crank. =
If I wait for another 45 minutes or so it cranks. Drive a few miles, =
turn it off to go in another store, and the same thing happens again. =
The engine turns over, but no cylinders fire.
I have done the following
1. Replaced the ignition switch
2. Replaced the coil
3. Replaced the fuel pressure regulator
4. Replaced the idle module
5. Replaced the air valve
6. Replaced the injectors
7. Cleaned all ground connectors, those on the motor and the bonding =
cable between the frame and the transmission. The van has never been to
=
the beach or run on salted roads. No corrosion any place.
8. Replaced the temperature sensor.
9. Replaced the wire from the computer to the temperature sensor.
Tomorrow I am going to see if I can find some liquid air and try cooling
=
down some connectors to see if that may be a problem. I think that the =
last time this happened it was getting fire. I will check again to be =
certain.
Any suggestions will be appreciated. I'm getting too old to keep this =
up much longer.
George
84, Georgia
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