Can't find the sticky link to the FSM, so asking a question on here... Do anybody esle know how many voltage does the O2 sensor signal voltage read out? Thanks in Advance...

 

It doesn't "read" any volts unless it's warmed up. After that you need to monitor the sensor voltage with a high impedence meter to make sure it swings from about 0.2V to about 0.8V at least 10 times per minute. The sensor should not read a consistant voltage for any particularly long period of time, more than a few seconds, and should spend as much time, on average, above 0.5 volts as it does below 0.5.

 

Thanks for that. I am giong to buy this EQUUS guage that show how your car will run rich or lean while you drive. Just to have something to look into it... The guage require a 0 to 1 volt only and if its over 1 then I cannot use it. So I will get it and see how it goes from there.