2000 Pathfinder LX code P0304

A forum for the legendary Nissan Pathfinder and Infiniti QX4.
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Ronin1
Posts: 5
Joined: Mon Mar 06, 2017 1:20 pm
Car: 2000 Nissan Pathfinder LE; 1985 Pontiac Fiero GT; 1999 GMC Classic Sierra 1500; 1995 Chevy Silverado 2500HD

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We've been getting an P0304 code brand new cap and rotor, new wires and plugs, if engine is pushed over 4k rpm's it goes away. This morning, it is idling ruff and drives really ruff compared to before. Also there is a new sound of air blow by with a muffled sound out of the passenger side?????? Leaning towards the injector but was also thinking either fuel filter, or fuel pump? :wtf2:
Last edited by Rogue One on Thu Sep 14, 2017 7:16 pm, edited 1 time in total.
Reason: Revised title

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