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O2 sensor, bank 2 sensor 2??

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Old 03-14-2010, 05:05 PM
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Default O2 sensor, bank 2 sensor 2??
the code said my bank 2 sensor 2 o2 sensor is bad, how do i figure out which one this is? its a 2001.

thnks alot
-Leo
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Old 03-14-2010, 05:08 PM
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what was the code? and sensor 2 is always the down stream
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Old 03-14-2010, 05:14 PM
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yep down stream
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Old 03-14-2010, 05:40 PM
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WHat do you mean by downstream??
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Old 03-14-2010, 05:42 PM
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the sensor after the converter
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Old 03-14-2010, 06:26 PM
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don't forget, this guy has 4 O2's.. I think.. I can see it being confusing trying to figure out which one is bank 2 sensor 2
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Old 03-14-2010, 06:33 PM
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Originally Posted by gintaras
don't forget, this guy has 4 O2's.. I think.. I can see it being confusing trying to figure out which one is bank 2 sensor 2
thats why i asked what the code was because he should only have 2 sensors. the code should be p0136-p0141
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Old 03-14-2010, 06:42 PM
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i have 4, i think i figured it out.

bank 2- the rear half of the manifold

sensor 2- the second one, past the cat
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Old 03-14-2010, 07:15 PM
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Bank one = The Bank containing cylinder one

Bank two = The Other Bank

Sensor one = Upstream (Before Cat)

Sensor two = Downstream (After Cat)
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Old 03-14-2010, 07:18 PM
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I'm pretty sure bank 2 is passenger side on everything except fords. And yes after cat is correct
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Old 03-14-2010, 07:24 PM
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i just realized his is an 01 so it does have 4 sensors, my fault
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Old 03-14-2010, 09:03 PM
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yup thats a great diagram, i replaced # 3 on that diagram (which i hope is bank 2 sensor 2) and im pretty sure it is because it runs like a top now...

thanks for all the help
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Old 06-20-2010, 10:30 AM
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what years is that diagram through?
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Old 06-20-2010, 03:40 PM
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Originally Posted by XJDC
what years is that diagram through?
i think its 99-01 but not 100% sure
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Old 06-20-2010, 03:42 PM
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bank two sensor two is pass side after the cat
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