Use a VOM. Disconnected, the wire from ECU should give 0.5 volts
continuous. When the mixture is set correctly, the oxy should fluctuate
from 0.3 to 0.7 volts, about 1 or 2 times per second.

At 06:29 PM 08/18/2002, you wrote:

>Is there a simple way to test my 02 sensor, the bentley way requires
>special tools?
>
>Matt
>
>89 GL Westy