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The P0300 Saga

I have a P0300 code that started as a once-in-while temporary CEL, then started misfiring at idle but going away quickly after, to now misfiring noticeable above 2500rpm. This post

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
The P0300 Saga

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01-01-2023, 07:17 PM	#5 (permalink)
Averying Enthusiast Member Join Date: May 2018 Location: Rhode Island Posts: 487 Drives: '09 370Z, '03 G35 Rep Power: 14421	I have a P0300 code that started as a once-in-while temporary CEL, then started misfiring at idle but going away quickly after, to now misfiring noticeable above 2500rpm. This post scares me… specifically all the things you replaced that did NOT fix the issue. I sometimes also get a 02 sensor circuit code so I’m hoping that a new 02 sensor solves my issues. Maybe add some new 02 sensors to your to-do list? Sent from my iPhone using Tapatalk __________________ 2009 Sport Touring \| Platinum Graphite \| GTM Stage 1 Supercharger \| BC BR Coilovers \| Hotchkis Swaybar \| Z1 FUCAs \| AME TM-02 Wheels \| Z1 2-piece Front Rotors \| Z1 Clutch & Flywheel \| Invidia Gemini Catback \| GTM Resonated Test Pipes

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