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    Quick Links: 4 Cyl Oil Capacity Service Info Changed in 2018? Pre-runner sounds like it's running on two cylinders on start up I4, first oil change 2TR-FE Performance Thread Which exhaust for the 2016 2.7? 4 Cylinder Oil Change

96 2rz O2 sensor

Discussion in '4 Cylinder' started by jeffz0rz, Nov 28, 2012.

  1. Nov 28, 2012 at 5:47 AM
    #1
    jeffz0rz

    #1
    jeffz0rz [OP] Well-Known Member

    Joined:
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    Throwing a cel, scanner says catalyst bank one low efficiency or something like that. I'm guessing its the O2 before the cat ? Sound right ?
     
    jeffz0rz, Nov 28, 2012
    #1
  2. Nov 28, 2012 at 10:01 AM
    #2
    BamaToy1997

    #2
    BamaToy1997 Wheel Bearing Master

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    I have a feeling that it is not right. A P0420 is catalytic converter low efficiency. That USUALLY, but not always, indicates either a bad catalytic converter, or a problem with the O2 sensor AFTER the cat, which is what measures the cats efficiency. An exact code number would help.
     
    BamaToy1997, Nov 28, 2012
    #2

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