Throwing a P0304 code

[Carramrod]

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]

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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[Carramrod]

Yeah I actuslly opened the gap a little more to see and still giving me the same....

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[JeepinLife]

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

 

[Slimebones]

Might try compression and leak down tests. Would indicate any mechanical issues.

 

[WJCO]

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

 

[Carramrod]

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

Yeah I'm gonna do that this week

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[Carramrod]

Might try compression and leak down tests. Would indicate any mechanical issues.

The engine is brand new..shouod have any of those issues but if I can't find anything after trying I'll try that

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[Carramrod]

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

Will do

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[Carramrod]

Thanks everyone for the help...

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[MTG]

Are you out of warranty?

 

[Carramrod]

Are you out of warranty?

Yeah

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