Need help on P0136 and P0141 codes

jovin619 · **Joined:** Mon Aug 24, 2009 11:44 am **Posts:** 4

i need help on identifying witch sensor to change. i have p0136 02 sensor circuit malfunction ( bank 1 sensor 2) and p0141 o2 sensor circuit malfunction (bank 1 sensor 2). I just replace the 02 sensor at the catalitic and this should cover the p0141 code and i erase it but it came back on after 10 minutes driving around the block. So i dont know why the p0141 is still on. plus can anyone tell me witch sensor is the p0136 02 sensor bank 1 sensor 2. thanks you for any help.

Type Vehicle
Montero Sport LS 3.0

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

jeff compton · **Posted:** Mon Aug 24, 2009 1:07 pm

What kind of vehicle? John deere?

jovin619 · **Joined:** Mon Aug 24, 2009 11:44 am **Posts:** 4

My Fault to include the vehicle info. its montero sport ls 3.0. any help would really appreciated.

jpb · **Joined:** Wed Oct 17, 2007 9:29 pm **Posts:** 76

Codes are for the same sensor; bank 1 sensor 2. This is the right side ( sitting in the drivers seat ). I did not want to say passenger side as I don't know if it is rh or lh drive. It is the post cat sensor ( after the cat) Did you use a factory sensor or aftermarket?

jovin619 · **Joined:** Mon Aug 24, 2009 11:44 am **Posts:** 4

The two sensors that i used by the CAT is aftermarket bosch brand. I needed to know which is P0136 bank 1 sensor 2 because there is two different 02 sensor in the front due to the price on each sensor. one of the sensor cost $150 and the other is $69.

jpb · **Joined:** Wed Oct 17, 2007 9:29 pm **Posts:** 76

From your description it sounds like you possibly replaced both upstream sensors. You did not understand my explanation so try reading this and see if you understand the configuration. This is from a link on this site.
http://autorepair.about.com/library/faqs/bl026h.htm

Need help on P0136 and P0141 codes

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