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I got platinum plugs and gapped them at about .042

The old spark plugs were gapped way too much. And I’m getting a P0300 which is multiple/random engine misfire.

hey everyone! My name is shay. Have a 2004 Jeep Liberty for about 3/4 years now. Joined in because recently I have had a multiple engine misfire for a while now and seems to be getting worse. I’ve changed o2 sensors, converters, fuel packs to spark plugs and just seems to be getting worse. Is...