← vanagon.com home · Continue the discussion in the forum

Search messages and discussions

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 12+: 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: Passing through creek, engine misses badly
Historical mailing list - Tim Vogelin
Mon, 5 Mar 2001 10:45:43 -0500
...To check this, one morning disconnect the wire to the O2 sensor and see if the problem still happens. If not, it probably is...
Re: Boston Bob Big Valve Update? Not really... (LONG)
Historical mailing list - Ken Lewis
Tue, 15 Feb 2005 22:25:36 -0500
Marc, I have some O2 troubleshooting tips on my web site plus I made up a few gadgets which display the O2 sensor output...
Re: My Sunday project
Historical mailing list - Mike S
Tue, 18 Sep 2007 13:10:03 -0400
...No O2S on a Federal '81. The AFM could be fooled. Maybe water injection, someday (would that make it a watercooled engine? :-) ).
Re: Syncro stutter
Historical mailing list - Dennis Haynes
Sun, 15 Nov 2009 22:21:28 -0500
...Your problem is with the O2 sensor circuit. You need to test that the O2 sensor lead is not shorted to the outer sheath...
Re: Heh -- I'm such a ninnyhammer
Historical mailing list - Dennis Haynes
Sun, 3 Aug 2008 22:31:55 -0400
Any adjustment of the air flow that makes any difference is proof the o2 sensor circuit is not working properly. The only time the...
Re: What IS Vanagon Syndrome, exactly?
Historical mailing list - mark drillock
Fri, 18 Oct 2013 14:12:32 -0700
...Improved seat of the pants running after unplugging the O2 sensor doesn't always prove the O2 sensor should be replaced. There are many...
Re: Running Rich??
Historical mailing list - David Beierl
Wed, 11 Apr 2001 12:36:25 -0400
At 07:57 AM 4/11/2001, Warren Chapman wrote: >running rich when the O2 sensor is attached. Disconnect the O2 sensor and >it...
O2 Sensor in Catalytic Converter
Historical mailing list - Brian Keese
Mon, 25 Apr 2005 10:46:24 -0500
...Well, I don't need to put an O2 sensor there, as there is already one in the connector pipe. Unfortunately, the plug to...
Heh -- I'm such a ninnyhammer
Historical mailing list - Mike Elliott
Sun, 3 Aug 2008 15:40:01 -0700
...So I decided to take the Vanagon, and to disconnect the wire to the dash O2 meter, just in case the van's weird...
Re: How to remove O2 sensor
Historical mailing list - Stephen Grisanti
Fri, 2 Oct 2015 11:09:50 -0400
...It would be > better as others have said to use the dedicated O2 sensor socket. Heat was > essential however in my case. > Good luck...
Re: [VW gas I4 Conversions] Continuing to diagnose rich rough running Digifant ....from yesterday
Historical mailing list - Don Hanson
Thu, 24 Jul 2014 08:11:49 -0700
...Do you suppose that means I have a bad O2 sensor, or am I testing it improperly? Hi...I just re tested my O2...
O2 Sensor
Historical mailing list - TWessner
Sat, 6 Feb 1999 10:28:42 -0600
Hi Guys! I'm in the process of changing my O2 sensor on my 84 Westy. The old sensor seems to have become severely...
o2 sensor wire splicing
Historical mailing list - Gary
Tue, 25 Apr 2000 23:16:25 -0600
Can I solder O2 sensor lead wires? Or should I use solderless crimp connectors? I know my pyrometer wire needs to be joined mechanically...
Help Part 3
Historical mailing list - Finn Runyon
Sat, 9 Mar 2002 17:52:29 EST
I really screwed up aparently...I tried to restart after the O2 sensor was replaced, it started and then the wires to the O2...
O2 sensor
Historical mailing list - Pat Callaghan
Fri, 30 May 2003 09:32:49 -0700
Hi all, I am replacing my O2 sensor with the Bosch #13913 today. I will splice the wires but want to make sure that...
Re: O2 Sensor Voltage
Historical mailing list - kenneth d lewis
Fri, 2 Feb 2001 08:31:12 EST
...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: Question about temp II sensor and bad running
Historical mailing list - Jeff
Thu, 11 Sep 2008 12:47:50 -0700
Jim, O2 sensor does make sense. I had the same thing happen on two different Vanagons (one of them was Karl Wolz's). We...
Re: O2 sensor necessary or jumper the wires on 85 GL 1.9
Historical mailing list - David Beierl
Sun, 27 Jun 2010 00:23:04 -0400
...If I temporarily jumper the wire so it would >seem connected to a sensor would the ECU the assume the o2 is >functioning properly...
Re: New O2 sensor - hesitation when cold
Historical mailing list - Dennis Haynes
Fri, 14 Dec 2001 21:45:28 -0500
...New O2 sensor - hesitation when cold OK, I received a lot of good info related to this. About 75% have informed me that the...
Re: Running rich, O2 sensor says lean, exhaust leak?
Historical mailing list - Aerowolf
Tue, 13 Jul 2004 17:44:31 -0500
It's an electrical system (i.e., voltage runs from ground to the O2 sensor to the ECU to the positive terminal). If the...
Re: Inconsistent stumbling on resume throttle..Was "vanagon syndrome?"
Historical mailing list - Don Hanson
Wed, 25 Jun 2014 20:25:16 -0700
...And yes, the O2 sensor would do better if it got a reading from all four cylinders rather than just two, like it does...
Re: O2 sensor testing
Historical mailing list - G.M.Bulley
Mon, 13 Jan 2003 14:13:14 -0500
...O2 sensor testing Is there a way to check if the O2 is operating under normal parameters?
Re: Fw: Question-Oxygen Relay?
Historical mailing list - Neil N
Tue, 5 May 2020 17:00:12 -0700
...So at-near WOT, as the ECU tries to enrich the mix, if the O2 sensor is not disabled (or rather, the ECU is...
Re: O2 Sensor in Catalytic Converter
Historical mailing list - Don in North Carolina
Mon, 25 Apr 2005 11:57:09 -0400
...Well, I don't need to put an O2 sensor there, as there is already one in the connector pipe. Unfortunately, the plug to...
Generic O2 Sensor Question
Historical mailing list - Randy Newell
Mon, 14 Apr 1997 11:54:03 -0500
I just received my new Bosch O2 Sensor. There are three wires one black, and two white, my question is are the two white...
O2 sensor - wire repair?
Historical mailing list - van man
Thu, 29 Nov 2001 12:58:45 -0800
Hi Volks, Some how the green 'imbedded' wire that connects to the O2 sensor on my 87 Syncro has ripped in half. What I...
2nd O2 Sensor in Cat?
Historical mailing list - Jay L Snyder
Mon, 11 Feb 2002 15:59:17 -0500
I have one of the Bus Depot catalytic converters that has the hole for an O2 sensor (it comes witha threaded plug). I have...
Re: Boston Bob Big Valve Update? Not really... (LONG)
Historical mailing list - John Rodgers
Tue, 15 Feb 2005 05:38:04 -0600
Disconnected the O2 sensor??? What was the real effect of that on the ECU? And the lean/rich situation? My engine bucks and jumps...
Re: Had surging, fixed it, but did I just bandaid it?
Historical mailing list - Daniel L. Katz
Fri, 18 Mar 2005 19:35:11 -0500
...the O2 sensor output voltage is checked while connected, in normal closed loop operation. the high value of 0.9 V would be expected...
Re: Fuel injector cleaner: harm O2 sensor?
Historical mailing list - Dennis Haynes
Sun, 6 Mar 2016 09:26:43 -0500
I don’t see that as causing an O2 sensor fault. If the O2 sensor is mounted as it was in the 2.1L...
FW: Euro-Drive: 89 Volkswagen vanagon, Emissions/Poor-idle
Historical mailing list - Carrington, Tom
Tue, 29 Aug 2000 10:53:41 -0400
...Try new O2, runs excellent for a few miles. O2 waveforms look good then everything dives ! O2 now is biased negative. When looking at...
O2 Sensor Readings
Historical mailing list - John Clavin
Wed, 23 Jan 2002 21:34:49 -0600
...I have done that by adjusting the idle setting and CO mixture, and have been watching the O2 output with my DVM. I seem...
Re: Help Wiring O2 Sensor
Historical mailing list - Steve Delanty
Sun, 27 Apr 2003 10:34:30 -0700
...A 4-wire O2 sensor, with the ground connected to the same location as the ECU ground would eliminate O2 problems caused by slight...
Re: O2 Sensor - 3-wire vs 1-wire
Historical mailing list - Jonathan Farrugia
Sat, 21 Jan 2006 12:59:16 -0500
...installed 3-wire O2 sensor apparently has an internal fault. > > I have a brand-new-in-the-box 1-wire O2 sensor. > > Thanks, > > John...
Re: 87 Vanagon hesitation continues
Historical mailing list - Darrell Boehler
Mon, 10 Aug 1998 08:14:49 -0500
...87 Vanagon hesitation continues >Hi again, >Original message below >I have changed the O2 sensor and the problem persists. >With sensor disconnected the van...
diagnostic help? running rich(?)...
Historical mailing list - Don Hanson
Wed, 23 Jul 2014 15:39:06 -0700
...So, I unplug the O2 sensor plug, re start and it stays smooth.... So me thinks I have a problem involving the O2 sensor...
Re: Running rich, O2 sensor says lean, exhaust leak?
Historical mailing list - Larry Alofs
Tue, 13 Jul 2004 17:29:57 -0500
...If your O2 sensor is sooted up or something that may be causing a weak signal which tells the ECU to richen the mixture...
Re: O2 sensor stuff
Historical mailing list - Karl Wolz
Wed, 7 Mar 2001 07:44:41 -0700
...O2 sensor stuff > With all the talk about the 'Digijet Stumble' -- a problem that has been bugging me for a while -- I decided to...
Re: O2 Sensor wire connection (wiring harness end - 2.1)
Historical mailing list - Greg Potts
Thu, 10 Sep 2009 11:57:05 -0400
...One helpful hint I have implemented is to run an independent ground to the O2 sensor; the exhaust system itself is not the best...
Re: '89 Westy - Canadian?
Historical mailing list - Kelly Bauman
Mon, 2 Mar 1998 09:47:10 -0800
...It has a single speedo cable with no >O2 light box, and no O2 light on the instrument panel. Bentley implies >that all US...
O2 sensor and exhaust questions
Historical mailing list - Casa Gofastica motorcycle service
Mon, 3 Sep 2001 16:49:14 -0700
Does any one know of a cheaper alternative to an O2 sensor for an '86 GL? My other cars (Alfa GTV6 and Alfetta) both...
Re: (LONG) Surging Idle fixed! / Surging O2 sensor readings
Historical mailing list - kenneth d lewis
Wed, 12 Jan 2000 06:35:48 EST
...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: 1000 mile rebuild recommendations?
Historical mailing list - Kenneth Lewis
Thu, 10 Aug 2006 19:07:18 -0400
...First you need a good voltmeter and O2 sensor. The three throttle body alignments outlined in the Bentley should be checked. Carefully pry the...
Re: O2 Sensor Installed and CO adjustment problems (Sorry, Long)
Historical mailing list - Ken Lewis
Thu, 3 Oct 2002 06:27:15 -0400
...2> turn off engine and disconnect O2 sensor from ECU but leave monitor connected to sensor. 3>start engine and adjust AFM spring to...
Re: adjusting CO with O2 sensor
Historical mailing list - Frank Condelli
Mon, 21 Oct 2002 05:49:50 EDT
In a message dated 10/21/2002 12:11:53 AM Eastern Daylight Time, LISTSERV@GERRY.VANAGON.COM writes: > I disconnect the O2 sensor...
Re: Hesitation at low RPM
Historical mailing list
Fri, 6 Apr 1990 10:10:34 -0400
...Rabbit book for testing the O2 sensor with a battery and a dwell meter. If you cant find it email me back Btw, the...
O2 sensor lite
Historical mailing list - John Andersen
Thu, 24 Jun 1999 12:10:14 -0700
My 81 runs badly with the O2 sensor hooked up but when I unplug it the motor smoothes out and runs much better. The...
Where is *your* O2 Sensor?
Historical mailing list - Jeremy Speer
Sat, 18 May 2002 10:07:50 -0500
Folks, On my '89 Westy, my O2 sensor is screwed into my catalytic converter. It's attached just beyond where the exhaust pipe connects...
FS: O2 Sensor and AFM Harness...
Historical mailing list - Andrew Fox
Wed, 9 Jun 2004 17:34:10 -0600
...Prices are $30 for the O2 sensor and $40 for the Harness including shipping, or $65 if you take both including shipping (within U...
Re: O2 Sensor, Bucking etc.
Historical mailing list - kenneth d lewis
Thu, 2 Nov 2000 19:02:17 EST
...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: Using O2 sensor for fuel mix adjustment?
Historical mailing list - Tom Young
Mon, 13 Oct 1997 13:34:59 -0700
On Mon, 13 Oct 1997, Johan Nyberg wrote: > Listees! > > I've seen references to using the O2 sensor present in some Wasserboxer > vans to...
Re: Tooooooooooooo ritch a startup...com on guys!!!!!
Historical mailing list - Benoit
Mon, 25 Apr 2005 21:43:55 -0400
...I agree, the O2 is not responsible for the fuel surge at start up...but it's a Vanagon, you never know. I will...
Re: O2 sensor light on means?
Historical mailing list - Robert Crawford
Sun, 8 Jun 1997 13:58:36 -0700 (PDT)
...Anyone? I presume >>it means either the O2 sensor has failed or there is another problem >>with the exhaust (e.g. hole). > >Hole is...
update: running rich/low power
Historical mailing list - Aaron McKay
Sun, 28 Nov 1999 11:16:04 -0800
Many thanks to all of you, esp Kenneth D Lewis, as it was his suggestion of unplugging the O2 sensor that isolated my problem...
Is it safe to saw through an o2 sensor ?
Historical mailing list - Dave L
Mon, 12 Jun 2000 13:55:20 -0400
I bought a replacement o2 sensor for my 89. But I can't get the old one off - it's rusted on pretty good...
Re: High Cost of O2 Sensor
Historical mailing list - John Rodgers
Thu, 22 May 2003 12:59:16 -0500
...John Rodgers 88 GL Driver Sidney White wrote: >In calling around and shopping on Internet I cannot find an O2 sensor for >less than...
Re: O2 sensor testing
Historical mailing list - Claudio Cella
Mon, 13 Jan 2003 21:44:27 -0800
Hello to all, while on the topic of O2 sensors: if i understand correctly if the sensor shows no volts (bad sensor or no...
More rant on grounds and vanagon syndrome
Historical mailing list - Steve Delanty
Thu, 10 Apr 2003 09:58:11 -0700
...Under "normal" conditions the voltage output of the O2 sensor is approximately 0.5 volts. A voltage output of 1.0 volt would indicate...
Re: ABQ emission test
Historical mailing list - Dan N
Tue, 2 Jun 2015 11:21:40 -0700
not a specialist in this matter but your O2 is almost zero... may be the oxygen sensor is bad? On Tue, Jun 2, 2015...
Re: O2 sensor testing
Historical mailing list - Ken Lewis
Sun, 19 Jan 2003 11:26:35 -0500
...O2 sensor testing > > > > > > Is there a way to check if the O2 is operating under normal > parameters? > > > > > > > > > > > > This communication is for use by the...