wjdennison
New member
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