A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Got a CEL >> P0136 - need a new O2 sensor....opinions needed.

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Old Nov 1, 2006 | 04:14 PM
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Default Got a CEL >> P0136 - need a new O2 sensor....opinions needed.

Not sure if many of you use foulers, but I wanted to know how effective they are. I'm not sure if I should go ahead and order a new 02 sensor, or try this fouler method....maybe even if cleaning the sensor would be an option. Would this be a good opportunity (excuse) to pick up a test pipe? Let me know what you guys have done to get rid of your CEL.
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Old Nov 1, 2006 | 04:14 PM
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front or rear sensor?
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Old Nov 1, 2006 | 04:21 PM
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Default LOL......

ok flamesuit on......I thought there was only one sensor that goes into the Cat....I guess there are 2. Where is the other one hiding? *ducks*
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Old Nov 1, 2006 | 04:25 PM
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They're da butt plugs.
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Old Nov 1, 2006 | 04:29 PM
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Default i think i saw the other....but i cleared the codes using an OBD2....didn't specify which sensor...

it was. Not sure if it would.
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Old Nov 1, 2006 | 04:30 PM
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Not unless its V6 (Bank 1/2) IIRC.
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Old Nov 1, 2006 | 04:31 PM
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1.8t... one up by the cat.. the other is down near the bottom of the DP iirc
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Old Nov 1, 2006 | 04:34 PM
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Default lesson for the noobs

B1S1 = Bank 1 sensor 1 aka front
B1S2 = Bank 2 sensor 2 aka rear sensor

so yes it will tell you which one
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Old Nov 1, 2006 | 04:43 PM
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ahh thanks....i wrote it down....its (Bank1 Sensor2)...so the rear one is my problem.
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Old Nov 1, 2006 | 06:50 PM
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Default you wouldn't happen to have a part# handy would you Nate? =P

for a rear O2 sensor for an 01.5? TIA
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