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Thread: 2002 Eclipse 3.0 o2 sensor location???

  1. #1
    Join Date
    Feb 2009
    Posts
    3

    Default 2002 Eclipse 3.0 o2 sensor location???

    PO134 PO152 PO154 PO155 PO171
    2002 mitsubishi eclipse v6 3.0
    I think this means I have two bad o2 sensors, bank 1 sensor 1 & bank 2 sensor 1. Are these the two sensors in the exhaust manifold front and back?
    The manual only shows a 2.0L car with two sensors total.

  2. #2
    Join Date
    Jan 2007
    Posts
    4,850

    Default

    Hi eclipse-02,

    Yes, the upstream (sensor 1) O2 sensors are located in the exhaust manifolds. The downstream sensors (sensor 2) are located on the other end of the catalytic converters.

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