350z running rough after being fixed

Nissan 350z / Nissan 370z technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Ausdboss
Posts: 1
Joined: Wed Apr 13, 2016 5:39 pm
Car: 2003 Nissan 350z Track Edition (Drift Car)

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I have a 2003 350z and it was starting run very rough about a week ago, then the code reader showed,
Random Misfire. I replaced all the ignition coils and replaced all the spark plugs with NGK's. I've been driving it for about 4 days and now it feels like its missing again! What should I look at? What could it be?
Any help is MUCH Appreciated!


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evildky
Posts: 14713
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 240ZT, 87 300ZXN/A-T, 06 350Z GT, Tundra TRD RW
Location: Louisville, KY
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Before replacing everything did you isolate which cylinder was misfiring? Does the misfire pickup as rpm's climb?


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