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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 15+: 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.

• Re: '87 westy oxygen sensor problems.
  Historical mailing list - Laurence Smith
  Thu, 27 Jun 2002 15:00:45 -0400
  It is likely that with the trauma of the O2 wires being ripped off that the green coaxial O2 wire that goes into the...
• Re: ECU reset, O2 voltage stability
  Historical mailing list - Old Volks Home
  Tue, 13 Feb 2007 14:11:49 -0800
  ...When the Digijet vehicle first starts, it runs in "Open Loop", disregarding the O2 signal. After about 2 to 3 minutes, it reverts to...
• Re: Cough, Choke, Splutter!
  Historical mailing list - Laurence Smith
  Thu, 21 Mar 2002 11:42:47 -0500
  Mike, Your O2 wiring sounds right. Please note: The white wire that attaches to the ECU cannot be seen. It is inside the harness...
• Re: Fuel Mileage and Upholstry
  Historical mailing list - Chuck Mathis
  Mon, 24 Mar 2008 06:35:34 -0500
  ...I have tried different combo's of connection > of pre-sensor connected and o2 disconnected and vice versa but the o2 > disconnected is the...
• Re: O2 sensor stuff
  Historical mailing list - Chuck Mathis
  Wed, 7 Mar 2001 09:11:05 EST
  ...I have reconnected the O2 sensor and will continue to be amazed by the quirks of this system. Chuck '85 Wolfsburg Westy -- 'Roland' In...
• Re: 2.1L hesitation at low RPM.....
  Historical mailing list - Ken Lewis
  Sun, 22 Dec 2002 11:15:16 -0500
  Chris; It would be helpful to know what the O2 sensor is doing during all this. My "guess" is a grounding problem between the...
• ECU reset, O2 voltage stability
  Historical mailing list - Mike Frost
  Tue, 13 Feb 2007 10:20:11 -0800
  ...So I am looking closely at the O2 sensor which was very recently replaced. My first question is about the Digifant I ECU. I...
• decreased mileage problem solved!
  Historical mailing list - Mark McCulley
  Sat, 13 Jun 1998 21:32:17 -0700
  I have determined the cause of my 2-3 mpg decrease in mileage after a tuneup and O2 sensor change. The problem had nothing...
• Re: How do I reset the O2 sensor light?
  Historical mailing list - David Beierl
  Sun, 15 Aug 1999 14:20:09 -0400
  At 13:39 8/15/99 -0400, Steve Elfelt wrote: >Subject says it all! How do I reset the O2 sensor light? > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >Steve, 84...
• Re: O2 Sensor
  Historical mailing list - David Beierl
  Tue, 6 Feb 2001 10:58:08 -0500
  At 11:09 PM 2/5/2001, Mark Keller wrote: >For us as owners to look at a closed loop O2 sensor reading and...
• O2 Sensor Voltage
  Historical mailing list - Mark Ingalls
  Thu, 1 Feb 2001 19:12:44 -0600
  Hello Volks, With my Digitool on my 85 Digijet, my O2 reading at idle goes from .75ish to .1ish or less then back up...
• tiico o2 sensor
  Historical mailing list - dunks
  Thu, 18 Apr 2002 21:26:29 -0400
  ...just installed a2 injectors/rail/regulator/carbon eliminator AND found that the o2 sensor is wired but not responding. sensor works individually, but can...
• Gas mileage
  Historical mailing list - Mike Miller
  Wed, 16 Apr 2008 09:58:44 -0700
  ...Put in a new O2 sensor last year when the old one quit working. Paul of Valley Wagenworks says Bosche sold a bunch of...
• Re: huge loss of power
  Historical mailing list - Darrell Boehler
  Tue, 22 Jun 1999 14:41:52 -0500
  Hi Steve, I would check the o2 sensor,the temperature 2 sensor and the afm (air flow meter). The engine will naturally have a...
• Re: What do folks do when replacing Calforina Air Cooled Vanagon Exhaust?
  Historical mailing list - Steve Delanty
  Sat, 24 May 2003 09:19:20 -0700
  ...He'll do an inspection of the exhaust system to look for leaks ahead of the cat and O2 sensor. If all looks good...
• Re: o2 sensor voltage
  Historical mailing list - Dennis
  Tue, 3 Apr 2007 22:29:57 -0400
  If the engine is rich enough to be a noticeable problem, the O2 sensor output should be 1 volt or more. To quickly check...
• O2 Sensor Questions
  Historical mailing list - Chad
  Mon, 5 Mar 2001 15:27:59 -0400
  ...I then disconnected the O2 sensor and all is well again. Could it in fact be a screwed O2 sensor or the wire that...
• Interesting '87 Westy charging problem
  Historical mailing list - Martin Wilson
  Mon, 24 May 2004 13:02:39 -0700
  ...Disconnected the O2 sensor plug from the speedo cable thingy and the O2 light goes out but the alternator light stays on. Removed the...
• Re: Diagnostic Question
  Historical mailing list - Shawn Fowler
  Thu, 1 Mar 2007 10:56:03 -0800
  ...I also replaced the ground on the O2 sensor. I have put two tanks of gas through it, one with fuel injector additive. Anyhow...
• Re: AFM spring tension
  Historical mailing list - Darrell Boehler
  Wed, 7 Jan 2015 15:12:16 -0600
  On 1/7/2015 3:02 PM, Darrell Boehler wrote: > Hi Dan, > With a warm engine and the O2 sensor disconnected set the > tension...
• O2 sensor
  Historical mailing list
  Mon, 3 Jun 1996 12:36:00 -0400
  Does anyone know of a good (simple) way to check the O2 sensor. It is a 3 wire on an '87 syncro. I am...
• Re: oxygen sensors checking and theory
  Historical mailing list - Ken Lewis
  Tue, 29 Apr 2003 12:38:05 GMT
  I have a "readers digest" version of O2 sensor theory on my web site http://neksiwel.20m.com/ . I also have a few gadgets...
• Re: Which O2 sensor?
  Historical mailing list - Larry Alofs
  Mon, 17 Apr 2006 16:55:03 -0500
  ...Jeffrey Vickers wrote: > I've been getting stumbling/missing between 3 and 4K rpm so I > disconnected my O2 sensor and it seems to...
• Re: Generic O2 Sensor
  Historical mailing list - Laura Woten
  Tue, 9 Jul 2002 16:31:54 -0700
  We are having problems with the Bosch O2 Sensor as well. What are some other Vanagon-specific sensors that we could look at? TIA...
• Re: More O2 Sensor confusion...
  Historical mailing list - Mark Ingalls
  Tue, 6 Mar 2001 07:41:20 -0600
  ...More O2 Sensor confusion... >Date: Mon, 5 Mar 2001 23:57:38 -0400 > >I originally asked the question about the O2 sensors today and...
• Re: Inconsistent stumbling on resume throttle. Was "vanagon syndrome?"
  Historical mailing list - Dennis Haynes
  Wed, 25 Jun 2014 17:02:43 -0400
  ...How it senses the O2 difference is a mystery. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of...
• engine tuning after muffler and o2 install??
  Historical mailing list - Ed DeBolt
  Fri, 12 Jan 2001 14:43:52 -0800
  Hi everybody I just installed a new muffler and o2 sensor. the engine is running pretty well but performance seems a bit off. previously...
• Re: o2 sensor: required?
  Historical mailing list - John Hawk
  Wed, 9 Jan 2002 13:24:34 -0600
  ...I am putting my 85 GL back together, and can get it running this weekend, *IF* I leave off the o2 sensor (can't...
• Re: Vanagon syndrome...it sucks!
  Historical mailing list - Dennis Haynes
  Thu, 7 Apr 2016 21:13:41 -0400
  Any mechanic or exhaust shop with an oxy-acetylene torch should be able to get that O2 sensor out for you. The threads may...
• Re: Ground for o2 sensor and ECU
  Historical mailing list - Raymond Paquette
  Sat, 28 Apr 2007 09:01:49 -0700
  ...Raymond On 4/27/07, Mark Drillock <drillock@earthlink.net> wrote: > > Keep the O2 sensor ground separate and on the engine! Connecting it's...
• Re: Cat Bypass Pipe "pros & cons"
  Historical mailing list - Dan N
  Thu, 16 Apr 2015 17:02:33 -0700
  I have hear that without the CAT the O2 sensor won't work correctly because of lack of back pressure. If you really want...
• Re: Wierd digifant problem today!
  Historical mailing list - Hector Zapata
  Wed, 13 Mar 2002 19:54:25 -0800
  ...Any ideas or experiences with this? Adam P Disconnect the O2 sensor. I installed a new O2 sensor when I repaired the heads on...
• 87 automatic- acceleration off idle
  Historical mailing list - Mark Keller
  Wed, 26 Sep 2001 18:07:46 -0800
  ...The first check is to warm the motor up, disconnect the O2 sensor, and connect a Voltmeter to the O2 sensor. The computer in...
• Re: Someone have the part number for the universal O2 sensor?
  Historical mailing list - Steve D
  Wed, 3 Nov 2004 17:20:43 -0800
  ...splice the connector for a Ford O2 sensor into your wiring harness, and buy the Ford O2 sensor at your local FLAPS for about...
• How to remove O2 sensor
  Historical mailing list - Dennis Jowell
  Thu, 1 Oct 2015 12:37:41 -0400
  I just started to replace my O2 sensor on my 2.2 wbx. No,luck using my wrenches . Everything is rusted together. The catalytic...
• Bosch O2 Info
  Historical mailing list - neil n
  Tue, 23 Apr 2013 15:17:01 -0700
  ...Some of the info should apply to the older style O2 sensors (single wire and heated 3 wire type) Neil. -- Neil n Blog: tubaneil...
• Bad gas mileage/ecu
  Historical mailing list - Mike Miller
  Sat, 28 Feb 2004 17:35:42 -0800
  ...Put my digitool in there, looked like the O2 sensor was bad. Changed it. Same mileage. Put digitool in and the engine starts missing...
• Rich Running....Vanagon Syndrome? HELP!
  Historical mailing list - Richard Golen
  Wed, 6 Jan 2016 22:05:38 +0000
  ...One of the things I did was to put in a new O2 sensor. The previous one had its wires cut by the "mechanic...
• Re: O2 sensor is a thermistor
  Historical mailing list
  Thu, 6 Jun 1996 23:35:17 -0400
  ...In simple terms, the O2 sensor is >measuring the exhaust gas temperature. The computer compares the heat >with a calculated factor based on rpm...
• Re: O2 sensor monitor gadget any one have the link,
  Historical mailing list - Frank Condelli
  Thu, 25 Mar 2004 06:00:20 EST
  ...Any body have the link for the O2 sensor monitor gadget that some one was sell. Ken Kewis > _kdlewis@juno.com_ (mailto:kdlewis@juno...
• Re: Running rich, O2 sensor says lean, exhaust leak?
  Historical mailing list - Tim Demarest
  Tue, 13 Jul 2004 14:39:00 -0400
  ...I've got a voltmeter hooked up to the >O2 sensor and the voltage was measuring consistently lean, despite the >obvious signs of the...
• Re: Billy Bones' never ending story
  Historical mailing list - Warren.K.Lail-1
  Fri, 12 Mar 2004 23:03:41 -0600
  Just today, one of the mechanics I talked to attached a meter to the O2 sensor and said it was working fine, and that...
• Re: adjusting CO with O2 sensor
  Historical mailing list - Tom Young
  Sun, 20 Oct 2002 08:34:59 -0700
  ...adjusting CO with O2 sensor > I am going to check & maybe adjust my CO today & wanted to make sure I > understood how to do...
• O2 Sensor Idea (long)
  Historical mailing list - Geza Polony
  Wed, 6 Sep 2006 20:49:21 -0400
  ...That's why on later models, car companies started incorporating O2 sensor heaters. What this does is give excellent (rich) running when cold, probably...
• Re: Intake manifold gaskets
  Historical mailing list - Mike Collum
  Mon, 28 Jul 2008 18:59:26 -0400
  ...The stuff's that's not can render the O2 sensor useless.
• Re: Post-waterpump replacement - wires and noises
  Historical mailing list - Matt Roberds
  Thu, 24 May 2007 21:49:36 -0500
  ...Maybe you just got a pulley back on a little loose or crooked or something simple like that. > b) Post overheat, my O2 sensor...
• Re: OXS light on
  Historical mailing list - Loren Busch
  Mon, 10 Jul 2006 08:09:11 -0700
  ...Theoretically you are supposed to replace the O2 sensor at this point also. But the mileage to replace the O2 sensor was increased to...
• Re: Wire gauge for the shielded wire for the O2 signal
  Historical mailing list - Keith Hughes
  Sat, 20 Sep 2014 10:19:32 -0700
  ...Wire gauge for the shielded wire for the O2 signal? My shielded wire from the O2 sensor to the ECU...that is badly aged...
• Re: New O2 Sensor and engine dies
  Historical mailing list - John H. Rodgers
  Sat, 27 Jun 1998 16:01:33 -0500
  ...Installed new O2 sensor, now engine tries to stall when starting off unless I really put the pedal to the metal. Seems to have...
• Re: O2 Sensor problem
  Historical mailing list - mccullough bob
  Sun, 22 Mar 2020 12:31:06 -0500
  ...This van was fine with the o2 sensor that had been on it for 4 years. Its not Vanagon syndrome. I have had small...
• Re: Loss of power - super hot muffler
  Historical mailing list - John Rodgers
  Wed, 11 Dec 2002 16:58:26 -0600
  If I recall correctly, sometime earlier there was a discussion about he O2 sensor wiring. The two white leads are for the O2 heater...
• Re: 1.9L - Will not idle cold - when warm idles at 2800RPM
  Historical mailing list - Evan Mac Donald
  Mon, 7 Jun 2010 15:02:48 -0700
  ...If the van will idle normally then, Viola! Its the stupid idle controller! If that makes no difference, try unpluggning the O2 sensor. The...
• Re: Is it safe to saw through an o2 sensor ?
  Historical mailing list - Keith Adams
  Mon, 12 Jun 2000 12:16:03 -0600
  Dave, O2 sensors (if I recall correctly) are a ceramic compound, which, in the prescence of oxygen, releases free electrons and causes a current...
• '87 Westy Weekender owner needs help!!!!!! 2.1L wbx running rich???
  Historical mailing list - Mike Frost
  Mon, 18 Jul 2005 05:57:21 -0700
  ...In the harness just above the injectors there is a green wire that carries the output of the O2 sensor to the computer. This...
• Re: Jerky Van continued
  Historical mailing list - Greg Marshall
  Wed, 6 Jun 2007 17:13:25 -0400
  ...I do have an O2 sensor, and it's brand new. G. ----- Original Message ----- From: "Richard A Jones" <jones@COLORADO.EDU> To: <vanagon@GERRY...
• Re: Boston Bob Big Valve Update? Not really... (LONG)
  Historical mailing list - Craig Oda
  Tue, 15 Feb 2005 08:32:23 -0800
  ...Here are some of my thoughts: - O2 sensor must be disconnected from the ECU - wait for the O2 sensor to get nice and hot...
• Re: How to remove O2 sensor
  Historical mailing list - Karl Wolz
  Fri, 2 Oct 2015 09:24:07 -0700
  ...It would be >> better as others have said to use the dedicated O2 sensor socket. Heat was >> essential however in my case. >> Good luck...
• Catalytic Converter failure
  Historical mailing list - Jim Maginel
  Wed, 07 May 1997 10:14:59 -0500
  ...I asked for specific things to look for--and he stated the either the O2 sensor or an engine that "runs too rich" could...
• Re: turn o2 sensor off
  Historical mailing list - Hotch
  Thu, 24 Oct 1996 13:11:06 -0400
  matt wrote: > > Anyone know where to turn the o2 sensor light off at? > > thanks > > matt > ---------------------------------------------------------------------- > >...computers in the future may have only 1,000...
• O2 sensor light on means?
  Historical mailing list - Karl F. Bloss
  Sun, 8 Jun 1997 16:33:43 +0000
  ...Anyone? I presume it means either the O2 sensor has failed or there is another problem with the exhaust (e.g. hole). Thanks, -Karl...