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  1. #1
    New JK Freak
    Join Date
    05-13-2018
    Location
    MA
    Posts
    3

    Question New to me 2009 jku 3.8 codes help

    Just picked up a 2009 jku rubicon 3.8 auto.

    The limited history I know about the Jeep is that it was a 1 owner traded in to carmax then sold at dealer auction when I bought it. Someone recently did a top end including at least 1 reman head, possibly a complete engine rebuild.

    Been driving less than a week. Current codes are P0153,P0157,P2098.

    Hoping someone can point me in the right direction. Also the cel is not on constantly with these stored codes, but there is 2 systems that are showing not ready and state of MA says I can only have 1 not ready for my inspection sticker.

    And yes I have tried searching everywhere including google.

  2. #2
    Supporting Freak bradm's Avatar
    Join Date
    05-04-2012
    Location
    Delaware, Ohio
    Posts
    1,119
    P0153 - O2 Sensor 2/1 Slow Response
    P0157 - O2 Sensor 2/2 Circuit Low
    P2098 - Downstream Fuel Trim System 2 Lean

    https://www.quadratec.com/c/referenc...how-check-them
    2011 Black Sahara Unlimited
    4" FrankenLift
    37" MTR/Ks on black 17" ProComps
    DIY Hydro-Assist Steering
    Rubicon front axle with Yukon 5.13's
    Rear Eaton E-Locker with Yukon 5.13's

  3. #3
    New JK Freak
    Join Date
    05-13-2018
    Location
    MA
    Posts
    3
    Just replaced both driver side O2 sensors and cleared the codes. Hoping thats all it take so i can get a sticker

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