Throwing a P0304 code

Carramrod

Carramrod

New member
I know it's misfire on cyl. 4...its a brand new engine..new coils new plugs....ive swapped the coils and plugs from cyl.2 to see if I would get a 302 code but I didnt...anyone wanna chime in? 14 rubicon

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robx251

robx251

Caught the Bug
I know it's dumb but I know when I did my plugs on my 10 I found that i accidentally closed the gap on one of my plugs and caused the misfire I had to get worse. Try looking there and go from there

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JeepinLife

JeepinLife

Caught the Bug
Can you hear this miss? Check plug wires and even throw a spark tester on it to see how it looks. Check injector plug.
 
WJCO

WJCO

Meme King
Check all primary ignition wiring as well to make sure it's tight and not rubbing on anything. Same with the injector wiring.
 
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