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Bad O2 sensor


Old 06-13-2018, 03:37 PM
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Bad O2 sensor

Hey guys. I ran the codes on my 03 last week and I have a bad O2 sensor. I don't have the code on hand but will be running it again to grab the code. My question is, how do I track down what sensor it is that needs to be replaced? I'd rather skip the guessing game .
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Old 06-13-2018, 04:27 PM
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The code will tell you, post it up here
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Old 06-13-2018, 09:02 PM
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Each of the four sensors has a specific code attached to it.
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Old 06-13-2018, 10:43 PM
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@Cleric670, I think I have a bad 02 sensor as well. Oh... I have my exhaust on now I get the P0420 and P0430 which I kind of expected from the test pipes/hollow cats, but what I noticed is one of my 02 Sensors (02S1 (B2)) is going over 1 Volt and sticking around 0.6 Volts (Idle) while all the rest read 0.3v at an idle. I have no code for it, but what I am wondering is can the computer compensate for it or will it perform any better replacing it? Also was thinking about doing the 02 sensor hack on the "after cat" sensors I saw on YouTube.
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