1. Needed Manifold Plugs

    In my 1988 YJ with I have the 4.2 engine block with the 4.0 head. The intake and exhaust manifolds are stock to the 4.2 I believe. I have nuttered the Jeep, therefore I am not using the knock sensor and coolant sensor in the intake manifold and the oxygen sensor in the exhaust manifold. I would like to remove the sensors and switches and install plugs. I am having a mess of time finding appropriate plug for these ports. Do y'all have any suggestions where I can get these plugs?Needed Manifold Plugs

  2. #2
    Join Date
    Feb 2009
    Location
    Dayton Ohio Area
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    Needed Manifold Plugs

    Couldnt you leave the sensors in and not connect wiring? Roll up and zip tie the O2 pigtail.

    There are O2 sensor plugs. Walker brand


    Never look down on anyone unless you are helping them up - Jesse Jackson
    Last edited by JPNinPA; 11-24-2021 at 06:16 AM.
    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  3. #3

    Re: Needed Manifold Plugs

    I did that prior and I am hoping for a cleaner look. I think I have found what I need, they are on order.

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