I take it the engine now sits in a Vanagon, right?  That's too bad.  There's
been a recall:
http://www.epa.gov/reg3artd/whatnew/vw-fs.pdf

>From: Jonathan Farrugia <jfarrugi@UMICH.EDU>
>Reply-To: Jonathan Farrugia <jfarrugi@UMICH.EDU>
>To: vanagon@GERRY.VANAGON.COM
>Subject: oxygen sensor
>Date: Tue, 9 Dec 2003 23:15:55 -0500
>
>i have a technical oxygen sensor question i would like to pose to the
>list.  i am in the process of replacing the oxygen sensor on a engine
>from a 99 golf 2.0 liter engine code AEG.  the oxygen sensor that i am
>replacing is the one after the catalytic converter.  in an attempt to
>cut the cost on this replacement i saw that it was a four wire bosch
>sensor, so i searched the web for cheap four wire bosch sensors that
>could be spliced to my wiring harness.  i found a sensor for $40 for a
>93-95 chrysler concord.  when i went to change the sensor out i noticed
>that it was unlike any sensor that i had seen before.
>
>after doing some more web research i have determined that this car and all
>newer vw's and audi's are using planar oxygen sensors.  the one i bought
>is a four wire heated thimble sensor.  so my question is will the four
>wire heated thimble work for me or do i need to buy a planar sensor, ie
>what are the draw backs of running a thimble sensor in place of a planar
>sensor?  from what i have read the differences are that the planar sensor
>reacts faster, heats faster, and requires less current to run the heater,
>but other than that it looks like the output is the same.  one other
>question i would like to ask is does anybody know the bosch part number
>for the oxygen sensor after the catalytic converter on a 99 golf?  mine
>was pitted on the first couple of digits so i can't make out the number
>and i can't find the number on the web, the long bosch part number that
>is.
>
>i've been using the bosch site to cross numbers for cheap planar sensors
>and i have it down to about $61 for a planar sensor that can be spliced to
>my wiring harness.  thats probably what i will do but i would still be
>interested to know if i could use the thimble sensor in place of the the
>planar sensor.  if anyone wants to do reading on sensor stuff here are
>some links.  i've asked this question to some other lists and come up
>short so i am depending on the cumulative far reaching wisdom of the
>vanagon list. :)
>
>
>--------------------------------------------------------
>bosch faq oxygen sensor web site
>
>http://www.boschusa.com/AutoParts/FAQs/OxygenSensors/
>
>--------------------------------------------------------
>
>vw 2.0 uses a planar oxygen sensor
>
>http://www.asashop.org/autoinc/may2003/o2.htm
>
>--------------------------------------------------------
>
>which cars use planar oxygen sensors, LSF 4 narrow band sensors
>
>http://www.forparts.com/Bos02update2.htm
>
>-------------------------------------------------------
>
>technical pdf on bosch sensors, very good
>
>http://www.sts.sae.org/membersonly/techinfo/servicetech/oxygen13-17.pdf
>
>-----------------------------------------------------

_________________________________________________________________
Browse styles for all ages, from the latest looks to cozy weekend wear at
MSN Shopping.  And check out the beauty products! http://shopping.msn.com