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What is the typical downstream O2 sensor voltage ?

What is the typical downstream O2 sensor voltage ?

This topic has 3 replies, 3 voices, and was last updated 7 years, 10 months ago by Steve.

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July 8, 2016 at 9:04 am #862199
Steve
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Hi
What are the typical downstream O2 sensor voltages while idling and while driving in a HWY ?
My car is 2000 civic, automatic. no cel.

thx.
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July 8, 2016 at 6:35 pm #862217
college man
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.5 or less volts. With slow fluctuation
July 8, 2016 at 10:15 pm #862242
Jonathan Stiver
Participant
Yeah, something around .5v, it should be fairly constant.
July 9, 2016 at 1:39 am #862254
Steve
Participant
I have a steady 0.7 or 0.8V while driving in a highway. Sometimes, It drop to 0.1V while idling and then, it goes back to 0.7V or 0.8V.
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