Re: Black Soot on Spark Plugs
I may have the this on the wrong stroke, I'll double check it. I haven't put a scanner on this yet, so guess I will do that next.
I have replaced all the O2 sensors, one of them was in 2 pieces so thought it was good to replace all of them. This particular Jeep has 4 O2 sensors, 2 on each side of the engine, one upstream of small catalytic converter and one downstream.
I haven't put a scanner on this yet, so guess I will do that next to see what I can determine. I'll keep you posted on the progress.
Thanks for the reply.