TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

How do i know which O2 sensor is bad?

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Old Jun 8, 2007 | 07:46 AM
  #1  
element2050's Avatar
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Default How do i know which O2 sensor is bad?

I have this code.

Oxygen (lambda) sensor B1 S1 Internal resistance too high p11113 - 35-10 Intermittent.

Thank You so much. My car is being mean. All in two months boost leak, drivers side window motor, o2 sensor, brake light, and one engine fan is not working.

Ne cheap replacement parts or ideas? thanks again! I love this forum!
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Old Jun 8, 2007 | 07:53 AM
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Astronut's Avatar
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Default That's the pre-cat one

S1 = pre-cat
S2 = post-cat
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Old Jun 8, 2007 | 08:21 AM
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Default

yep!
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Old Jun 8, 2007 | 09:01 AM
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Default Pretty easy swap. I bought the generic Bosch and installed it last week.

You just have to cut off your old connector and wire it up to the new sensor. No biggie. To help with access, I removed the strut brace.
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Old Jun 8, 2007 | 09:24 AM
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element2050's Avatar
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Default just wire up? any soildering? What was the model number for yours?

Thanks!
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