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Subject:Re: O2 sensor trouble
From:Frank Condelli
Date:Sun, 6 Jul 2008 07:43:03 EDT

In a message dated 05/07/2008 9:05:23 A.M. Central Standard Time,
vanagonstretch writes:

Thanks  for info Frank. The new sensor is a Bosch 13913. The coax cable is
fine.  Pulled back the rubber boot on end and it looks like the day it left the
factory. Outside wires safe distance from spade connector. Checked continuity
 to ECU as per Bentley and all checks out. Continuity to ground and nothing
when connected to sensor. Made a good splice to sensor but had to extend the
wires using regular but large enough automotive wiring. Does the sensor
require special wire?
Maybe I will have to address exhaust leak even though  I don't think the
small leak that I have would impact performance of the  sensor that drastically.
Gas mileage not all that bad as I'm getting 19 to  20 miles per U.S. gallon
even while driving 120 km per hour. Not bad for a  regular Vanagon fully loaded
for a week of camping. I'm not driving a regular  Vanagon.
I would still like to fix this sensor issue. Could it be a faulty  OXY sensor?
Getting 12 volts at OXY heater wiring with engine running.  Doesn't matter
which white wire goes to the brown and red/yellow wires? Would  it even matter
if the heater is connected?

Gerry, the exhaust can have  no leaks upstream !  The wire you used to make
the extension is not  critical as far as I know.  The heater wires are not side
sensitive and do  not have anything to do with the info sent to the ECU.
Could be a faulty  OXY sensor, but you can check this with a good ohm meter.
Reading should  be + - .5 volts when engine is running.  Check your Bentley for
exact  testing values.  I have one of Ken Lewis' OXY sensor readers permanently
 installed on my dash and another in the shop i use to test suspect OXY
sensors.

    Are you going to LiMBO's West River Westys,  Townsend, VT., July 10 ~ 13
?  Rita & I will be there, leaving here  Thursday morning.  I could bring my
OXY sensor tester if you want.

Cheers,

Frank  Condelli
Almonte, Ontario, Canada
'87 Westy & Lionel Trains (_Collection for sale_
(http://members.aol.com/Fkc43/trainsal.htm) )
_Frank Condelli &  Associates_ (http://members.aol.com/Fkc43/busindex.html)
- Vanagon/Vanagon Westfalia Service in the Ottawa Valley
_Vanagon Stainless Steel Exhaust  Systems_
(http://members.aol.com/Fkc43/exhaust.htm)
_BusFusion_ (http://members.aol.com/BusFusion/bfhome.htm)  a VW Camper
camping event, Almonte, ON, June 12 ~ 15,  2008