Vanagon EuroVan
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Date:         Wed, 18 Jan 2006 19:44:37 -0800
Reply-To:     John Bange <jbange@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Bange <jbange@GMAIL.COM>
Subject:      Re: running problems, 2.1
In-Reply-To:  <BAY101-F3990C55A5D8A30BC8F489FCD1C0@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1


> when you disconnect the O2, sensor I figure the voltage output goes to
> zero.
> How does the Fuel injection treat this output?




ECU defaults on O2 open loop to a sort of "safe" mode, usually running the
engine slightly on the rich side. Not terribly fuel efficient and it
probably would never pass a smog test, but it runs in a satisfactory manner.
I'm sure "open loop" mode on the Vanagon ECU compares unfavorably with the
same vintage euro-spec Digifant, which had no O2 sensor input; but in any
case, the Digifant is perfectly capable of running sans O2 sensor.


--
John Bange
'90 Vanagon - "Geldsauger"
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