Date:         Sat, 5 Jul 2008 08:18:26 -0700
Reply-To:     Robert Fisher <refisher@MCHSI.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Robert Fisher <refisher@MCHSI.COM>
Subject:      Re: O2 sensor trouble
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=original

I'm gonna beat you both over the head with a copy of Strunk and White, now
cut it out.

Cya,
Robert

----- Original Message -----
From: "Gerry Lepage" <vanagonstretch@AOL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Saturday, July 05, 2008 8:05 AM
Subject: Re: O2 sensor trouble


> ---- Original Message ----
> From: RAlanen@aol.com
> To: vanagon@gerry.vanagon.com
> Cc: vanagonstretch@aol.com
> Sent: Sat, 5 Jul 2008 5:54 am
> Subject: Re: O2 sensor trouble
>
>
>
>
> In a message dated 04/07/2008 9:49:47 P.M. Central Standard Time,
> LISTSERV@GERRY.VANAGON.COM writes:
>
> Van runs terrific and all is well with the o2 sensor unplugged for over 1
> year now. I figured since I was placing an order with Bus Depot that I
> would order a new one to save on gas mileage. I ordered the good one, the
> Bosch that I had to splice the wires myself.?I got the old one out
> and?connected the new one up and bus runs like crap. Rough idling with
> black smoke. Same as old sensor. Unplug it and it runs perfectly.
> Is there a way to check the new sensor to make sure it's good or is there
> any other reason for this behaviour? I do have a slight exhaust leak at
> the heads. Could that cause a poor reading at the o2 sensor?
>
> My bus is the '91 Vanalong with stock 2.1 with 210 000 km and runs really
> strong without sensor. Should I simply leave it unplugged? How much more
> gas will it burn?
>
>
>
>
>
> ?
>
> ?
>
> ????????Gerry, you cannot have an any exhaust leaks upstream of the OXY
> sensor.? It will not operate correctly.? Is that OXY sensor a BOSCH ??
> Like the ones I sell >? from my Vanagon Items Forsale webpage >? OXY
> sensor, 2.1 engine, BOSCH, 13913??-? $85.00.? Did you make a
> good?&?perfect continuity splice? ?? Next thing to check is the green
> wire.? Is it integral ?? Does the shielding end just before the terminal
> end where it joins the coupling to the OXY sensor.? That shielding must
> not touch the terminal end.? That wire is what is called a coaxial cable.?
> You need to determine if it's good all the way back to the ECU, see your
> Bentley manual for testing procedures.? If those things do not help then a
> complete diagnostics of the FI system is needed.? The engine is supposed
> to run perfectly with the OXY sensor connected otherwise you will get piss
> poor gas mileage and you don'T want that with high gas prices, do you ?
> ?
>
> Cheers,????
>
> Frank Condelli
> Almonte, Ontario, Canada
> '87 Westy & Lionel Trains (Collection for sale)
> Frank Condelli & Associates - Vanagon/Vanagon Westfalia Service in the
> Ottawa Valley
> Vanagon Stainless Steel Exhaust Systems?
> BusFusion a VW Camper camping event, Almonte, ON, June 12 ~ 15, 2008
>
>
> 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?
>
> Cheers, Gerry
> www.vanalong.com
>
>
>
>
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