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Old Apr 3, 2008 | 04:25 AM
  #1  
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From: RAF Lakenheath, Cambridge, UK
Help

I replaced my o2 Sensors and now i am getting code P0157. It says that 02 Sensor Circut Low Volts (Bank 2 Sensor 2) I am kinda stuck here. Any help would be greatley appreciated! Thanks in advance.
Old Apr 3, 2008 | 06:46 AM
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What sensors did you change? There are 4 of them.

Bank 2 sensor 2 is the after cat sensor on the passenger side.
Old Apr 3, 2008 | 09:14 AM
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Well i replaced the sensor infront of the cat Driver side. The other one i replaced was pass side by the motor infront of the Y pipe... I am fairley new at all of this, i am trying to learn so i do thank you for the help. Also, are all of the 4 sensors 4 wire sensors?
Old Apr 3, 2008 | 09:29 AM
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Sorry, left this out.. On this site they make it sound like the sensors are all different.. One for front left, front right, back left and back right.. I am lost like a fart in a wind storm.. ha

http://catalog.drivewire.com/drivewi...=Oxygen+Sensor
Old Apr 3, 2008 | 10:11 AM
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Front pair and rear pair are the same sensors. I believe the fronts have 4 wires and the rears only have 2.
Old Apr 3, 2008 | 01:20 PM
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Do you have a cat starting to get clogged? I'd check that.

Although, if its just a bad rear o2 sensor; i'd just have it tuned out... imo
Old Apr 3, 2008 | 01:29 PM
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Clogged cat.... Hmmm... But sitll back to the 02, would the error that i am gettin "Low Voltage" be able to be corrected by just replacing all of them. like i said i already did 2 of em... So, i guessi can do the other 2... It is a little hazy on if they all are the same.. Maybe i have a burnt wire.... I have no clue... i have my car over here in England (Oxford) and i am trying to avoid paying a butt load of $$ since the conversion rate is DOUBLE over here... It is nice having it here though so i can blow the doors off all the BMW, and French cars... Quite fun...
Old Apr 3, 2008 | 02:14 PM
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All 4 sensors are the same. On some years one of the front sensors has a little bit shorter wire length, the the sensors are all 4 wire heated sensors and all the same.
Old Apr 3, 2008 | 02:37 PM
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Fantastic! So i guess i shall just order another 2 and give that a whirl.... Hopefully that corrects the Low voltage to 02 sensor error that i am getting...
Old Apr 3, 2008 | 03:41 PM
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Originally Posted by 2xLS1
All 4 sensors are the same. On some years one of the front sensors has a little bit shorter wire length, the the sensors are all 4 wire heated sensors and all the same.
Sorry about my post before, I was thinking LT1 for a second.
Old Apr 15, 2008 | 12:49 PM
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Well today i replaced the last 2 sensors... I cleared the faults and started to drive off base... Everything was running pretty smooth then i matted it... Right when i banged it into 3rd the frickin check engine light came on again.. So, when i get home it said that bank 1 sensor 1 low volts and bank 2 sensor 2 low volts... Maybe i got it back-wards but it is still showing faults.... I got problems...
Old Apr 16, 2008 | 01:05 PM
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Nobody has anything? Don't mean to be impatient.




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