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1998 Toyota 4Runner Question: Where is the bank one O2 sensor located on a 1998 Toyota4Runner?

 

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kcchef357, Bossier City, LA, May 13, 2013, 15:01
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I had a reading done on it that stated a bad O2 sensor, bank one

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  • Answer #1

    tunnelram May 13, 2013, 16:54
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     Journeyman

    bank 1 is the engine side that has number 1 cylinder.

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  • Answer #2

    pushrod May 13, 2013, 18:55
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     Master

    Depends on which engine you have! 4 or 6 cyl.???? V6 pass. side is bank 1, 4 cyl only one bank so it is #1. Now, is it sensor bank one sensor 1 or bank 1 sensor 2?? We need the actual code number(s).

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    kcchef357, May 13, 2013, 20:29
     Rookie

    4 cylinder

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    pushrod, May 13, 2013, 20:38
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     Master

    There is only one bank but two sensors! Sensor #1 is at the engine, sensor #2 is behind the cat. converter. Post trouble code(s).

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    kcchef357, May 14, 2013, 04:33
     Rookie

    It read "Bank one, sensor one".....that's an upstream sensor, right?

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    pushrod, May 14, 2013, 06:15
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     Master

    Yes.

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