02 Sensor Volts Question
07-27-2009, 08:16 PM
#1
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02 Sensor Volts Question
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...
07-27-2009, 08:27 PM
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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.
Last edited by abecedarian; 07-27-2009 at 08:28 PM.
07-28-2009, 11:00 PM
#3
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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.
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.
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