DIY WBO2 testing

[Ron Schroeder]

Flowing some propane on the sensor from an unlit torch should make a change.

Ron Schroeder
WD8CDH
day 631 344-4561
nite 631 286-5677

----- Original Message -----
From: "Crescent Kao" <crescent at c-speedracing.com>
To: <diy_efi at diy-efi.org>
Sent: Friday, January 11, 2002 10:35 PM
Subject: DIY WBO2 testing


> Hello,
>    I tested the WB today with the actual O2 sensor and the heater circuit
is
> working now. The LED will switch on in about 30secs at 14.0-14.5v. I added
> two 10ohm resistors in parallel with R4. Voltage at the heater is rock
solid
> at 10.4v.
>
>    With the O2 connected and in free air, I then hooked up a digital volt
> meter and I get a reading of 4.24v - 4.25v. Looks a little high to me...
Can
> anyone verify this or determine if this is functionally correct? How can I
> test this further without it being installed in the vehicle?
>
> Thanks.
>
> Crescent Kao
> Director of Marketing and Sales
> www.c-speedracing.com
>
>
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