Date:         Mon, 15 Aug 2011 05:47:54 -0700
Reply-To:     Alistair Bell <albell@SHAW.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Alistair Bell <albell@SHAW.CA>
Subject:      Re: O2-sensor blues and more on '84 1.9L engine
Comments: To: John Rodgers <inua@CHARTER.NET>
In-Reply-To:  <4E48ABFD.60803@charter.net>
Content-Type: text/plain; charset=us-ascii

wish it was me, but no, its Ken Lewis.

alistair
On 2011-08-14, at 10:17 PM, John Rodgers wrote:

> I think it's Alistair Bell on this list make a little gizmo that you
> mount in the instrument pod and connect to the O2 sensor that gives and
> continuous indication of operation of the O2 sensor. It not a counter,
> but just a series of little indicator lights that when operating
> properly moved rhythmically back and fourth. As long as it does, all is
> will with the O2 sensor. If not - then no ocillation. On startup and
> until the O2 sensor warms up to operating temperature, the lights will
> wander eratically, but once up to temp, it will oscillate. A handy gadget.
>
> JOhn
>
> John Rodgers
> Clayartist and Moldmaker
> 88'GL VW Bus Driver
> Chelsea, AL
> Http://www.moldhaus.com
>
>
> On 8/13/2011 10:46 AM, John Lauterbach wrote:
>> First, thank you to one of the list gurus who suggested checking on
>> shorts between O2-cable and its shield.  I had one of my own causing.
>>
>> When the O2-sensor is connected and I measure the voltage between the
>> connector and engine ignition control module heat shield, I am getting
>> around 0.46 volts with engine warmed up.  Voltage is rather stable with
>> engine at idle.  Am I in the ballpark?
>>
>> With O2-cable unplugged, resistance between connector and ground on
>> cable to O2-sensor is infinite.  Resistance between other connector and
>> ground on cable to ECM is 173000 ohms.
>>
>> I am not sure what I am missing, but engine runs well, but is running
>> very rich.
>>
>> John
>>
>>