http://www.rockauto.com/catalog/x,carcode,1286580,parttype,5132,a,Search%2Bfor%2B1990%2BVOLKSWAGEN%2BVANAGON%2BCAMPMOBILE%2BFuel%252FAir>
ORR ~ DeanB
On 30 Oct , 2014, at 11:12 AM, Dan N wrote:
> FYI... regarding Bosh Oxygen sensor - same as at our favorite vendors
>
> http://www.autozone.com/engine-management/oxygen-sensor/bosch-oxygen-sensor/volkswagen/vanagon-2wd/1990/4-cylinders-b-2-1l-fi/232283_115960_1784/
>
> On Thu, Oct 30, 2014 at 10:05 AM, Stuart MacMillan <stuartmacm@gmail.com>
> wrote:
>
>> Of course it works fine, the only reason for the heated version is to have
>> lower emissions during cold start warm ups by getting the 02 sensor working
>> quicker, which isn't even measured during state emissions tests. It's an
>> EPA requirement, and every little bit helps over millions of vehicles.
>> There has been a long effort to do all kinds of things to warm engines up
>> quickly to minimize cold running richness. For example, my '06 Scion won't
>> upshift to "drive" below 35 mph until it's been driven for about two
>> minutes. When I first got the car I asked the dealer if this was normal,
>> and it is.
>>
>> Your idle drop issue after a hot run is not due to the O2 sensor. More
>> diagnostic fun in store!
>>
>> Stuart
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
>> Of Don Hanson
>> Sent: Thursday, October 30, 2014 9:35 AM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Single wire Oxygen sensor: Substitution report..
>>
>> I run digifant engine management for my inline VW ABA Jetta motored
>> vanagon...same as the stock Vanagons but with the inline motor providing
>> the go..A few weeks ago I had some problems with my engine management
>> system and traced it to a dysfunctional Oxygen sensor. I'm almost
>> positive the problems were a result of bad wiring between the O2 sensor
>> and the ECU, but I have no actual confirmation of that.
>>
>> Anyhow, I was unhappy with the cost of replacing the Bosch 3-wire
>> heated Oxygen sensor in my rig...the best I could find was about $70 for
>> another Bosch heated sensor, and that one didn't even have the proper plug
>> for my wiring harness...So I did some research, called around a bit and
>> asked...and the general response was that I could replace that 3 wire
>> heated oxygen sensor with the single wire Bosch sensor and save myself
>> about $50 without any real downside to engine performance. But......No one
>> would actually come right out and tell me that. Lotta "Oh, that should be
>> OKs"...and "I don't see any reason why that wouldn't work fine"s....There
>> was also some nebulous opinion as to how to properly connect the
>> sensor...Should the shielded wire loom carry a grounding connection or
>> not...etc...
>>
>> Anyhow I bought a single wire Bosch from Van Cafe and installed it.
>> The results are quite satisfactory. The only downside has been that after
>> sustained highway driving if you shut off the motor for a short while the
>> idle speed is a little low...low enough to stall sometimes...for just a
>> couple of seconds, until the O2 sensor gathers enough heat to resume proper
>> function, I guess.
>>
>> I have regained my fuel economy...back up to 24.xx mpg after 3000 miles
>> with the new sensor. the O2 sensor i again modulating the fuel mix
>> properly....When running with the O2 sensor disconnected from the ECU, I
>> was seeing around 4-6mpg less gas mileage but the motor felt quite happy
>> and strong..
>>
>> So, in my case, I successfully saved some money on that part and gained
>> back my good gas mileage. Here's a handy app to help you track your
>> fuel...there's one for the smart phones, too....
>> http://www.fuelly.com/dashboard
>>