Question about 2004 Suzuki Verona

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2004 suzuki verona..where is bank 1 senor 1 located on the engine

I need to replace the o2 sensor and need to know just where it is located..thank you

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  • yadayada
    yadayada May 11, 2010

    bank one is the cylinder bank that has the number one cylinder in it.

  • Anonymous Mar 21, 2014




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This car has a transversely mounted straight six I believe, which is really unusual, but that means it only has one bank, so "bank 1, sensor 1" will be the upstream O2 sensor (between the engine and the cat) and "bank1, sensor 2" will be the downstream sensor (behind the cat).

Posted on May 10, 2009

  • 2 more comments 
  • franclemont May 31, 2011

    False. There are two banks. Bank 1 is on the driver side, bank 2 is the passenger. Sensor 1 is the top sensor, sensor 2 is the bottom. This is the same for both sides. The 2004 Suzuki Verona has 4 O2 (oxygen) sensors. I noticed that the post was made two years ago, but i'm sure others would find this information useful.

  • Don Mitchell
    Don Mitchell Nov 24, 2014

    Bank 1 is always closest to #1 cylinder, bank 2 is other side. Sensor 1 is always upstream from or above converter, sensor 2 is downstream or below converter. Verona #1 cylinder is drivers side. You will need a 22mm wrench.

  • Don Mitchell
    Don Mitchell Dec 01, 2014

    Bank 1 on 04 Verona is passenger side. Look between engine and firewall, Sensor 1 is above converter.

  • Don Mitchell
    Don Mitchell Dec 01, 2014

    Bank 2 sensor 1 is near centerline between engine and firewall, accessible from drivers side



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Bank #2 referes to the side of the eng in which cyl. #2 is snsr #1 referes to the sensor before the cat. conv. and the code is for a slow response so, basically a lazy O2 snsr. So if you can locate cyl. #2 and follow the exaust manifold on that side of eng. the very first O2 snsr you see is the one in need of diag./repair

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