Mike,
If you read the tech sheets there is more to a "good " O2 sensor than
voltage swing. They talk about "slow" sensors also. I have some info (plus
my O2 sensor monitor) on my website : http://neksiwel.20m.com/
Ken Lewis
/

----- Original Message -----
From: "Mike "Rocket J Squirrel" Elliott" <camping.elliott@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, September 10, 2007 6:47 PM
Subject: [VANAGON] My poor MPG, O2 sensor seems okay

> As I've posted previously, my 84 1.9L auto only gets about 15.5 MPG
> while others have reported somewhat higher mileage. Even after filtering
> out those who seem to be quite optimistic, and paying especial attention
> to those who deny not keeping careful records, Mellow Yellow still
> trails the pack. It gives us great sadness.
>
> It has been proposed that my poor numbers might be due to a funky O2
> sensor, or crummy compression. I'll get to the compression tomorrow or
> the next day, but right now I have hooked up my handy-dandy voltmeter to
> the sensor and with the engine warmed up, it is outputting between .36
> volt and .66 volt, ranging around about .55 volt. This seems kinda
> normal, from what I read.
>
> --
>
> Mike "Rocket J Squirrel" Elliott
> 71 Type 2: the Wonderbus
> 84 Westfalia: Mellow Yellow ("The Electrical Banana")
> 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
> KG6RCR
>