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Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 11+: 60 results shown for O2.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Which O2 sensor?
    Historical mailing list - Jeffrey Vickers
    Mon, 17 Apr 2006 13:05:43 -0700
    I've been getting stumbling/missing between 3 and 4K rpm so I disconnected my O2 sensor and it seems to have cured the...
  • O2 sensor
    Historical mailing list - Arlene K Sondergaard
    Tue, 30 May 2006 10:24:40 -0700
    i wish it was just the o2 light that was the problem. my 1987 wolfsburg vanagon is bairly driveable. within a week of the...
  • Re: Question about temp II sensor and bad running
    Historical mailing list - Jim Felder
    Thu, 11 Sep 2008 14:43:47 -0500
    Isn't there a test for the O2 sensor where you heat it with a propane torch and measure they output? Can anybody tell...
  • Re: Another Exhausting Question!
    Historical mailing list - Steve Delanty
    Sat, 28 Aug 2004 17:38:21 -0700
    ...The threads on a O2 sensor are the same as 18mm spark plugs (-: It's a simple matter to cut the anti fouler in...
  • Re: High Cost of O2 Sensor
    Historical mailing list - R. Hotchkiss
    Thu, 22 May 2003 13:47:24 -0400
    It's the O2 sensor for a 1986 Ford Taurus with a V6. Richard Hotchkiss http://www.hotstrings-inc.com > From: TJ Hannink <tjhannink...
  • Re: At Idle: AFM Flap, CO Screw Relationship. Explanation Found
    Historical mailing list - neil n
    Sun, 8 Jul 2012 11:23:06 -0700
    Would an analogue VOM be better for measuring voltage at O2 lead? After a full tune up and installation of a new O2, cat...
  • Drop in gas mileage update 2
    Historical mailing list - Greenamyer, William L
    Fri, 5 Nov 2004 05:50:17 -0800
    Well I have not gotten back to the O2 sensor much past the initial troubleshooting but I did have an additional question. In my...
  • Running Without O2 Sensor Question
    Historical mailing list - Loren Busch
    Sat, 22 Apr 2006 22:44:34 -0700
    ...Is there any long term negatives to running without the O2 sensor other than the effect on gas mileage? I'm prompted to ask...
  • O2 sensor wire replacement, '85
    Historical mailing list - craig cowan
    Thu, 1 May 2008 16:16:24 -0400
    I remember reading recently that if the O2 sensor is grounding, it will cause hesitation off idle. Well i have this problem exactly.... And...
  • Re: O2 sensors
    Historical mailing list - Geza Polony
    Thu, 16 Feb 2006 12:20:05 -0500
    (See my reply to your earlier post as well, William.) The voltage meter I installed shows my (new) O2 sensor to produce correct voltage...
  • Re: O2-sensor results with digital voltmenter
    Historical mailing list - Scott Daniel - Turbovans
    Thu, 22 Dec 2011 21:04:49 -0800
    ...O2-sensor results with digital voltmenter > Here are the results from voltage test. > > Voltmeter +-lead connected to lead from O2-sensor, -lead on bumper...
  • mileage decrease after tuneup?
    Historical mailing list - Mark McCulley
    Mon, 8 Jun 1998 09:47:22 -0700
    Following a recent tuneup (plugs, rotor, cap) and O2 sensor change my mileage has dropped almost 3mpg (from ~18 to ~15). I just replaced...
  • Re: Alternator and O2 Dash lights on
    Historical mailing list - Bill Knight
    Thu, 16 Aug 2001 09:47:23 -0400
    ...Alternator and O2 Dash lights on In a message dated 8/16/01 9:10:37 AM, rbias@HOTMAIL.COM writes: << My O2 AND...
  • Re: o2 Test
    Historical mailing list - Jay L Snyder
    Tue, 20 Aug 2002 07:57:21 -0400
    NO, the wire from the O2 sensor should read .5 to .7 VDC. Doktor Tim <doktortim@ROCKISLAND.COM>@gerry.vanagon.com> on 08/19...
  • Re: O2 Sensor Readout
    Historical mailing list - Ken Lewis
    Wed, 13 Nov 2002 06:07:32 -0500
    ...I have had an in dash O2 monitor installed in my truck for about ten years with no ill affects in performance or mileage...
  • Re: o2 Sensor on 2.1L
    Historical mailing list - Christopher Gronski
    Mon, 8 Aug 2005 17:42:42 -0400
    OK Dennis, but if the green wire is sheilded and grounded through that sheilding, then how do I get the ground to the o2...
  • Pre-smog and smog
    Historical mailing list - Greenamyer, William L
    Tue, 9 Mar 2004 07:19:39 -0800
    ...O2 0.4 988rpm max average my van HC 150 0040 324 CO% 1.20 00.10 2.93 C02 10.7 O2 3...
  • Re: O2 Sensor
    Historical mailing list - Bill H.
    Tue, 1 Mar 2005 14:21:13 -0800
    ...O2 Sensor > > > Having trouble with my engine again (88GL) and it seems to be related to > the O2 sensor. It had been stalling a...
  • Re: Removing stuck O2 sensor
    Historical mailing list - Stuart MacMillan
    Sun, 1 Feb 2015 10:50:21 -0800
    ...Tried MAP gas with an O2 sensor crow's foot tool and could only get it 1/8th turn. At least NAPA loans those...
  • Re: small jobs - 88 westy GL
    Historical mailing list - Chrisw7971
    Tue, 5 May 1998 22:38:29 EDT
    ...When I bought my 87 syncro it did not pass MA inspection either, which lead me to find out the O2 sensor was bad...
  • Re: O2 sensor lite
    Historical mailing list - Karl Wolz
    Thu, 24 Jun 1999 12:25:18 -0700
    ...O2 sensor lite > My 81 runs badly with the O2 sensor hooked up but when I unplug it the > motor smoothes out and runs...
  • Re: problem(s) on the road, plus major good samaritan
    Historical mailing list - Warren Lail
    Mon, 16 May 2005 10:29:17 -0500
    ...I drove with my O2 sensor unplugged for a trip to Santa Fe and on the way back I got the rich, low mileage...
  • Gree O2 Wire replacement?
    Historical mailing list - Cory Zumbrennen
    Thu, 7 Aug 1997 17:03:29 -0600 (MDT)
    Hi all, According to my Bentley the green signal wire leading from the O2 sensor to the ECU is available seperately from VW. Has...
  • Re: O2 sensor outlet in new CAT, size?
    Historical mailing list - BJ Feddish
    Tue, 26 Jun 2007 17:24:31 -0400
    ...02 sensor in there. (Only Vanagon owners would have an old O2 sensor in their toolbox.) The van is quiet as ever now. Lost...
  • O2 sensor problems
    Historical mailing list - Craig Oda
    Tue, 31 Aug 2004 23:52:50 -0700
    ...This problem only occurs when the O2 sensor is connected to the ECU. When I disconnect the O2 sensor from the ECU, the problem...
  • Running Rich - O2 sensor reading low?
    Historical mailing list - van man
    Tue, 18 Feb 2003 08:30:26 -0800
    ...This started to happen with increased frequency on the road trip, ONLY ON GRADES, so I disconnected the O2 sensor and she ran great...
  • Re: O2 Sensor Voltage
    Historical mailing list - Larry Alofs
    Sun, 4 Feb 2001 09:53:43 -0600
    ...The O2 sensor generates a voltage directly related to the *difference* in O2 content between the ambient(outside) air and the exhaust stream. Lean...
  • Re: Engine management (manual control of mixture)
    Historical mailing list - Per Lindgren
    Sun, 16 Jan 2000 06:41:10 +0100
    ...and also includes good info on Lambda (O2) sensor, and the work it performs. *Build an O2 indicator: http://www.students.tut.fi/~eppu...
  • Re: New O2 sensor - hesitation when cold
    Historical mailing list - Brian Atkins
    Fri, 14 Dec 2001 07:37:18 -0500
    ...About 75% have informed me that the O2 sensor doesn't even begin to work until the engine is warm. There is also a...
  • Pre-smog
    Historical mailing list - Greenamyer, William L
    Tue, 27 Jan 2004 06:19:43 -0800
    ...2582rpm max average my van HC 180 0035 111 CO% 1.20 00.20 3.94 C02 12.3 O2 0.4 988rpm max...
  • Re: o2 sensor troubles
    Historical mailing list - Rich Bennington
    Thu, 3 Aug 2006 08:30:10 -0700
    ...o2 sensor troubles OK but are all o2 sensors the same? I don't see a distinction between 1.9, 2.1, air cooled...
  • Re: 1991 Vanagon 2.1L auto: failed DE emission test: CO (high)
    Historical mailing list - OlRivrRat
    Wed, 31 May 2023 22:56:34 -0600
    Karl Here’s My .5cent > General Rules of Emission Analysis • If CO goes up, O2 goes down, and conversely if O2 goes up, CO...
  • Re: ECU or O2 sensor ?
    Historical mailing list - Roger Van Till
    Fri, 27 May 2005 18:49:42 -0400
    ...I >> replaced> two O2 sensors before getting smart enough to check the >> wiring. An '86 >>> should have the three wire O2 Sensor so my...
  • Re: 1.9 ltr WBX O2 sensor question?
    Historical mailing list - Dennis Haynes
    Tue, 22 Sep 2009 07:54:17 -0400
    The O2 sensor develops it signal real time. It can be easily checked with a voltmeter set to the 2 volt scale. Needs to...
  • (LONG) Surging Idle fixed! / Surging O2 sensor readings
    Historical mailing list - Gary McEachern
    Wed, 12 Jan 2000 00:55:38 EST
    ...Replaced O2 sensor Questions 1. What is/are the symptom(s) of an O2 sensor going bad? 2. Could the timing affect this problem...
  • Re: Running rich, O2 sensor says lean, exhaust leak?
    Historical mailing list - Craig Oda
    Tue, 13 Jul 2004 14:25:52 -0700
    ...When I disconnect the O2 sensor, the engine seems to run okay. If I disconnect the O2 sensor from the ECU, but connect it...
  • Re: O2 sensor coax (sic) wire terminating
    Historical mailing list - Greg Marshall
    Wed, 13 Feb 2002 21:32:31 -0500
    Do all O2 sensors have this braided wire? I have an 82 california van with an O2 sensor, the single wire type. If i...
  • Removing Oxygen Sensor tips needed, broken O2 sensor cause backfire?
    Historical mailing list - Travers Fenton
    Mon, 22 Sep 2003 19:55:42 -0700
    ...Would an unconnected O2 sensor lead to backfiring and trouble starting? I'm guessing the O2 sensor measures the oxygen in the exhaust and...
  • Re: OXS sensor light question
    Historical mailing list - Loren Busch
    Fri, 16 Jul 2010 08:32:21 -0700
    ...O2 sensor went from 30k miles to 90k miles and the Feds weren't as paranoid about it, they'd found that the O2...
  • Re: O2 Sensor Voltage
    Historical mailing list - Larry Alofs
    Sat, 3 Feb 2001 01:28:11 -0600
    ...This indicates > a rich condition or to little O2.When there is O2 in the exhaust (lean), > the inside and outside of the sensor...
  • Re: How to remove O2 sensor
    Historical mailing list - Jim Felder
    Fri, 2 Oct 2015 01:33:47 +0000
    ...Or the O2 sensor was oval, > but probably both. > > It would turn back and forth about 1/8", and that was it. > > A long...
  • Re: O2 sensor thread size? Helicoil kit part number?
    Historical mailing list - Dennis Haynes
    Wed, 13 Oct 2004 19:44:19 -0400
    ...O2 sensor thread size? Helicoil kit part number? Is the O2 sensor thread size M18 1.5? If so.. anyone know the helicoil kit...
  • Re: Thread pitch / hole size for 1.9 WBX O2 sensor
    Historical mailing list - Mike Collum
    Sat, 17 Feb 2007 11:32:47 -0500
    ...not the M18 X 1.5 of the O2 bung. Could older models have a different size nut on the steering wheel? Mike Robert...
  • Re: O2 Sensor Readout
    Historical mailing list - Dennis Haynes
    Wed, 13 Nov 2002 19:19:46 -0500
    ...O2 Sensor Readout I am thinking about running two wires to the front to a digital voltmeter from the O2 sensor. If I looped...
  • Re: When the O2 sensor cools down...
    Historical mailing list - pickle vanagon
    Sat, 30 Aug 2008 12:23:43 -0400
    ...If the engine braking fuel shutoff still works after the o2 sensor cools, it means it's still most fuel efficient to stay in...
  • Re: O2 sensor is a thermistor
    Historical mailing list
    Thu, 30 May 96 09:34:11 PST
    ...An O2 sensor works by a chemical reaction (working from memory here so the details may be slightly off). They are actually comparing the...
  • Re: who sells vanagon dashboard switches /IMHO Malo
    Historical mailing list - Ryan Press
    Tue, 20 Apr 2004 08:01:22 -0700
    ...In other words, if the van starts running like > a > pig, first disconnect the O2 sensor monitor before troubleshooting. > > George > I have used a...
  • RE: O2 sensors, setting air mixture
    Historical mailing list
    Mon, 21 Nov 94 13:37:22 EST
    On a makeshift O2 sensor and the purpose of the sensor etc etc: There was very lengthy FAQ on exactly this question...on rec...
  • Temp II again
    Historical mailing list - Jay L Snyder
    Fri, 27 Oct 2000 12:46:59 -0400
    ...Digijet.) Can I run with O2 sensor disconnected? I undertand this will keep the ECU in open loop control (ignores "faulty" O2 sensor). Jay
  • O2 sensor stuff
    Historical mailing list - Terry Kay
    Wed, 7 Mar 2001 06:17:46 -0600
    ...have been experiancing lately can be corrected, by simpley disconnecting the O2 sensor? I replaced mine about 8 mos. ago, and now that you...
  • Low power, SHORT, just questions
    Historical mailing list - Marc Perdue
    Tue, 1 Apr 2003 19:07:20 -0500
    ...Seems most likely I have O2 sensor wiring that needs fixing . . . I believe the O2 sensor that's installed now is the non-OEM...
  • Re: Vgon syndrome on 1.9 WBX
    Historical mailing list - Marshall
    Wed, 14 May 2003 16:48:05 -0500
    I'm baaa-aaack! If you're running rich all the time, it is very possible that you have a disconnected O2 sensor, or...
  • Re: Thanks for your help, everyone! (New Vanagon Owner)
    Historical mailing list - Tom Young
    Sun, 13 Jun 2004 11:49:16 -0700
    Take it in to a competent mechanic and have the fuel/air mixture adjusted properly, then hook up the O2 sensor. In theory, a...
  • Re: Vanagon O2 Sensors
    Historical mailing list - marcus
    Wed, 15 Jul 1998 12:53:06 -0700
    ...Bought a "stock" O2 sensor, > plugged it in and all was well again. > > So moral of the story? Either the generic O2 sensor I...
  • Re: More 91 syncro troubleshoot ?'s
    Historical mailing list - Michael Sullivan
    Tue, 14 Jul 1998 07:50:39 -0400
    Dear Nathaniel, This is precisely the same thing that happened to me just two weeks ago -- I properly installed a "generic" O2 sensor and...
  • Another Exhausting Question!
    Historical mailing list - Tom Young
    Sat, 28 Aug 2004 17:24:49 -0700
    ...I was unable to rotate my catalytic converter to get the O2 sensor bung pointed downward where I could use it as an exhaust...
  • Re: Someone have the part number for the universal O2 sensor?
    Historical mailing list - Jim Thompson
    Sun, 7 Nov 2004 19:21:19 -0800
    ...Someone have the part number for the universal O2 sensor? > > > > Anyone have the bosch part number for the universal heated O2 sensor > > for an...
  • Re: Running rich, O2 sensor says lean, exhaust leak?
    Historical mailing list - Craig Oda
    Tue, 13 Jul 2004 14:15:58 -0700
    ...The thing that I don't understand is why the O2 sensor keeps telling me (and the van's computer) that the exhaust is...
  • Re: Vanagon O2 Sensors
    Historical mailing list - Yi-Ruey Wei
    Thu, 16 Jul 1998 17:17:26 -0500
    ...Also there are people like Nathaniel Merrill and Michael Sullivan DOES have problems after installed a "generic" O2 sensor. Yi-Ruey Wei 87 Vanagon...
  • Re: The Dying 86 Vanagon - engine cuts out
    Historical mailing list
    Thu, 15 Apr 1999 08:00:35 EDT
    When you replaced the O2 sender did you get a universal one where you have to splice the wires together or did you get...