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01 WJ 4.0 L Exhaust issues

Discussion in 'Grand Cherokee' started by Sburkett15, Nov 1, 2020.

  1. Nov 1, 2020 at 2:10 PM
    #1
    Sburkett15

    #1
    Sburkett15 [OP] New Member

    Joined:
    Nov 1, 2020
    Member:
    #5196
    Messages:
    1
    Gender:
    Female
    First Name:
    Savannan
    Vehicle:
    2001 Blue Jeep Grand Cherokee Laredo 4.0
    • I bought my WJ 4.0 back in December. The check engine light had been on since then but i was told don't worry about it, it is just an 02 sensor. Well starting in August i began smelling rotting eggs. I looked it up and seen that it is a failing cat. I ran a obd2 on it and came up with p0420 bank 1 sensor 2. I also have a california emissions on this although im in ohio. I am not use to this set up since my 2000 XJ is a regular exhaust(just got done with that problem!) I noticed there are 3 cats and 4 o2 sensors. I am getting confused on which cat is bad and which o2 is bad. May I please have some help? Thank you!
     
    Sburkett15, Nov 1, 2020
    #1
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