Hey guys so last weekend I started checking spark plugs since I was getting some SLIGHT misfire and low and behold it was time for some maintenance on the car. I did see some oil leaking on the passenger side of the car so I went ahead and bought the gasket to replace. I was able to put it all back except I snapped a bold on the Valve cover and put some RTV to cover it while I waited for a kit to pull the broken bolt. Put it all back and when I went to fire the engine I got the p0300 (multiple misfire) I may have mixed up the coil pack wiring on the passenger side of the car. Checked online for the wiring and I still feel it could be off. Other than that Im not sure whats wrong and causing it to misfire that much. Really need this car ready by next week as I have a road trip. A week of researching and still cant find anything that would help. Appreciate the replys

2004 Nissan 350z

 

Is it possible you switched up the 3 and 5 coil wires like you've mentioned? Have you tried unplugging each coil while running and listening to see if the engine note changes? Could be a bad coil as well.