Date:         Fri, 28 Oct 2005 17:25:36 EDT
Reply-To:     THX0001@AOL.COM
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         George Goff <THX0001@AOL.COM>
Subject:      Re: 88 GLstarts, stalls immediately
Comments: To: rogersisler2000@YAHOO.COM
Content-Type: text/plain; charset="US-ASCII"

In a message dated 10/28/05 2:13:17 PM, rogersisler2000@YAHOO.COM writes:

<< Hello, one thing you should know. When an engine like this starts up, it
is "out of loop". That is the computer is disconnected from the sensors.So
a bad temp sensor 2 is not the problem.Same with the o2 sensor.After warm
up ,if the engine is turned off,and then restarted the computer reconnects,
after 2 minutes, >>

One thing you should really know is that the above is not true.

Just think about it for a minute.  If a fuel system has no choke nor cold
start valve, how can it be started whenever it is cold?  Regardless of the type
of fuel system, an internal combustion engine still needs cold start enrichment
to get it rolling whenever it's cold.  In a Vanagon the FI controller adjusts
the pulses to the injectors in order to provide cold start fuel enrichment.
How does the controller know how much to adjust the pulses to the injectors?
By reading the coolant temperature, of course, as reported to it by the Temp
II sensor.  Hard starting either cold OR hot can be a symptom of a queefed out
Temp II sensor.

The FI system operates open loop only to give the OXS time to reach its
elevated operating temperature and then begin to fine tune the mixture in a closed
loop manner.  Using the OXS as the pivot man in a closed loop mode before it
is kicking would be pointless.

George