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    VWVortex


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    Thread: CEL - P0134 and P1116

    1. Member RIPkevsGTI's Avatar
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      Feb 11th, 2003
      Location
      Rhode Island
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      932
      07-25-2010 06:15 PM #1
      Hi, CEL came on and idle is very slightly rough (bouncing). I went to autozone and had them pull codes. They came back with P0134, and P1116. Specifically:

      P0134 - Heated oxygen sensor - bank 1 sensor 1 (H02S11) sensor circuit no activity detected. Air/fuel ratio concern - learn or rich. Probable cause open or short circuit concern, faulty H02S11 (Bank 1 sensor 1).

      P1116 - H02S sensor heater circuit open bank 1 sensor 1. Open or short circuit condition. Probably cause failed H02S11 (Heated oxygen sensor - Bank 1 Sensor 1).

      Sounds pretty cut and dry to me. Oxygen sensor. But should I be able to tell which one has failed from just this? I'd rather not replace both at $90 - $160 a piece. Or could this be something completely unrelated? Any way to test easily?

      Car is just about bone stock 2000 1.8t (AWD code). Upgraded diverter valve, always good about oil changes, spark plugs, air filters, belts, etc. About 200,000 miles.

      Thanks!
      91 GTI 8v - RIP - 192,511 mi. and dead
      00 Jetta 20v - 225,xxx mi. and counting
      97 volvo 850 wagon 20v - 191,xxx mi. and sold
      09 Jetta wagon 20v - 60,000 mi. and counting

    2. 07-25-2010 11:58 PM #2
      "Bank 1 Sensor 1"

      That says it all, as a 4Cyl you only have one bank, And The first sensor is the primary ( pre-cat ) while the Second Bank 1 Sensor 2 would be the Post cat.

      And wow, they are charging some serious money for the Narrow band O/2s!

    3. Member RIPkevsGTI's Avatar
      Join Date
      Feb 11th, 2003
      Location
      Rhode Island
      Posts
      932
      07-26-2010 07:25 AM #3
      Rock on. Thank you for the info... that is what I was thinking but wanted to ask around a bit.

      This is the cheaper of the two also.
      91 GTI 8v - RIP - 192,511 mi. and dead
      00 Jetta 20v - 225,xxx mi. and counting
      97 volvo 850 wagon 20v - 191,xxx mi. and sold
      09 Jetta wagon 20v - 60,000 mi. and counting

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