Misfire P0303

Logan_H

Member
Joined
Aug 2, 2022
Messages
65
Location
Raleigh North Carolina
Hey everyone,

I have a 05 rubicon, this is the second time I've had this code, the first time I replaced spark plugs all was good this was about last summer and today the code popped up again. Ive seen the TSB for the earlier TJs i don't believe they apply for my year what should I look for next?

I'm also getting a squeak when I push the clutch pedal down I have no idea why that also started today. any ideas on that would be great.

Thanks,
Logan
 
I'd install the TSB for the #3 cylinder misfire meant for earlier models anyway. Wrap the #3 injector with the below material and hold it on with a small zip tie. https://www.amazon.com/your-orders/...es=&returnUnitMappingId=&shipmentId=DkSrcl05N

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My P0303 was caused by a bad new plug shortly after replacing them. When I replaced the plugs I also replaced the manifold heat shield along with adding shielding to the injectors and fuel rail. Runs like a top now.

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