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p0138 o2 sensor?

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Old 10-13-2006 | 01:00 PM
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lcrazyaznl's Avatar
lcrazyaznl
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From: Commack, Long Island -> Queens NY
p0138 o2 sensor?
anyone has gotten this error
p0138 o2 sensor
circuit high voltage
bank 1 sensor 2

I can't tell if its the cat or the intake which is having problems.
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Old 10-13-2006 | 01:08 PM
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Tsx536
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From: N. Cali-forn-i-a
I believe that bank 1 sensor 2 refers to the Second O2 sensor on the CAT. You might need to put an anti fouler on the sensor. Are you getting any other CELs along with it?
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Old 10-17-2006 | 10:43 AM
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lcrazyaznl
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I think that is all.

It had a differnt cel before the cat was running too lean.

So the fixed it and positioned the sensor behind it.
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Old 10-17-2006 | 11:14 AM
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yeah, your Seconday O2 is reading .75V or higher
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Old 10-17-2006 | 11:49 AM
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lcrazyaznl
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What would the cause of that be ? water?
I do get a cel whenever i do drive my car in lots of rain or slush...
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Old 10-17-2006 | 12:02 PM
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moda_way
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Originally Posted by lcrazyaznl
What would the cause of that be ? water?
I do get a cel whenever i do drive my car in lots of rain or slush...
If that were the case, I would just put some electrical grease on the connectors. There are a host of HDS tablet instructions that would give more clarity.

Sounds more like a malfunction within the sensor.
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