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Date:         Wed, 15 Jul 1998 11:47:55 -0500
Reply-To:     ray.wei@US.PWCGLOBAL.COM
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         Yi-Ruey Wei <ray.wei@US.PWCGLOBAL.COM>
Subject:      Re: Vanagon O2 Sensors
Comments: To: Vanagon@VANAGON.COM
Content-type: multipart/mixed;
              Boundary="0__=V0uSJYkJduZlxPCBHVeaxcWdqm6jr5eXnNccuoMz52b3CYsTNhHkKTfC"

Good news! You can get a stock Bosch O2 sensor at German Parts & Restoration (1-800-321-5432) for $118 + shipping. Just talk to Greg at ext. 504. The O2 sensor I've bought from them has Bosch no. 0 258 003 931 but the sensor from VW dealer has Bosch no. 0 258 003 031.

Yi-Ruey Wei 87 Vanagon GL Syncro w/leaking cylinder head 85 Jetta GLI w/160,000 miles Dallas ray.wei@us.pwcglobal.com

Michael Sullivan <sullivan@OPENMARKET.COM> on 07/14/98 06:50:39 AM

Please respond to Michael Sullivan <sullivan@OPENMARKET.COM> To: Vanagon@VANAGON.COM cc: Subject: Re: More 91 syncro troubleshoot ?'s


Dear Nathaniel,

This is precisely the same thing that happened to me just two weeks ago -- I properly installed a "generic" O2 sensor and the engine wouldn't run at all once it warmed up. Disconnected ran fine. Bought a "stock" O2 sensor, plugged it in and all was well again.

So moral of the story? Either the generic O2 sensor I was sold was bad (which I suspect) or the splice that I made was bad (unlkely, as I've done WAY too many automotive splices in my day).

Here's to $130 O2 sensors! MJS

At 08:18 AM 7/13/98 -0700, Nathaniel Merrill wrote: >I ran some more tests. As far as I can tell the sensor is the correct one. It also looks identical to the old one. The splice I made was 6 inches from the sensor and are OK. SO I did not mess with the green possibly coaxial cable up on the other side of the connector and the three wires to the sensor are not coaxial. None of the pins on the two connecters show continuity with ground or the sensor housing. Only the two white wires are continuous with each other and the black is not continuous with anything. Is this correct? As I understand it the two white wires are for the sensor heater. I would expect them to be continuous if this was true (but, my old sensor does not show continuity though the two white wires-maybe the heating element was burnt?) I also tried what was suggested- run the van with the O2 unplugged and check for voltage. With the engine at normal op temp there was no voltage between the black wire and ground (using a multi meter). Is this the way to test this? Any more help is appreciated! > >>>> Gerald Skerbitz <gsker@x139-110.med.umn.edu> 07/12 7:26 AM >>> >The green wire which runs to the O2 sensor is a coax wire. The outer wire is >a shield of some sort which goes to ground. Make SURE you haven't connected it >to the O2 signal wires. > >On Sat, 11 Jul 1998, Nathaniel Merrill wrote: > >> There recently was a thread regarding poor running of a Vanagon after a tune up. I read the conclusions and don't think it covers my problem although It is related... >> I just installed a new O2 sensor. It was a Bosch which needed to be spliced in. I know how to solder and made some fine connections which were covered with shrink wrap afterwards. Anyway, it's now running really crappy...Smoke, black tail pipe, sounds like it's missing....the works. It did run fine before the switch AND I unplugged the O2 sensor and went for a test and it ....dare I say, ran great. Whats Up? >> > >-- >Gerry >Gerald Skerbitz <g-sker@umn.edu> >U of MN Academic Health Center Administrative Information Systems 6-5379 >Home St. Paul,Ramsey County,Minnesota, USA > Michael J. Sullivan Director of Catalog Design Open Market, Inc.

'87 GL Syncro Westfalia ******************************************** work: http://www.openmarket.com vanagon: http://www.hsdesign.com/vanagon scan tips: http://www.hsdesign.com/scanning ********************************************

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