Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (April 2009, week 4)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Tue, 28 Apr 2009 21:37:41 -0400
Reply-To:     "Daniel L. Katz" <katzd54@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Daniel L. Katz" <katzd54@YAHOO.COM>
Subject:      Re: O2 Sensor?

O2 sensor should remain connected and be up to operating temp for monitoring output voltage. a high impedance volt meter (i.e., most digital meters) must be used.

On Sun, 26 Apr 2009 11:41:29 -0600, Paul Connelly <vanagonhummingbird@GMAIL.COM> wrote:

>Hi All, > >Seems like the only answer, but just thought I'd ask the accumulated wisdom >(after trawling the archives). 2.1 WBX Digifant '86. > >Well its Springtime in the Rockies and it was time to dig Hummingbird out of >her residential snowbank and dust her down for camping season... Started up >first turn - good sign. Put the house battery back in, and noticed that the >idle was rough and low. Looking at the tail pipe extremely rich. Tried to >drive her round the block, and could only do so by switching the ignition >off and back on again (can't go too far since the tire walls are cracked and >waiting for replacements to arrive). Checked the voltage output from the O2 >sensor (disconnected) and just wildly varies from about .05V to about .15V, >nowhere near the .45V ish that it should be (or the .8V to be running that >rich). While disconnected the idle was very high ~2000RPM, but was running >smooth and leaner. Took her for a short twirl around the block and she semed >to be running fairly normally (as far as you can tell in a few blocks) >except for the high idle. (I do live at 9,100' if that might make any >difference to that) > >Tried resetting the memory in the control unit by switching off and >disconnecting the O2 and grounding the RPM wire - no difference. > >So seems to be O2 is at least the most likely culprit. Does anyone have a >part # for a FLAPS equivalent "splice in" for the Bosch, or the Bosch # so >that I can try to source one locally. I would like to replace it and try to >get the first trip in next weekend, and would rather replace it than just >leave it disconnected to get a better idea of how she is running overall. >Don't have enough time to get one from the list vendors and get it fitted by >then. (We really only have Napa and CarQuest locally). > >As always, TIA for any and all advice. > >Best, > >Paul Connelly >'86 Vanagon Syncro Westy (Hummingbird)


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.