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Need help with my g35

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Old Dec 6, 2022 | 04:12 PM
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Alex__.32's Avatar
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Turbo g35
Need help with my g35

I have an 04 g35 with a turbo and it’s reading a p0300 misfire code to me. I unplugged coil pack to cyclinder 3 and I started hearing popping noise, the same noise I heard before I replaced the spark plugs and coil packs can someone help me
 
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Old Dec 16, 2022 | 12:36 PM
  #2  
cleric670's Avatar
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Pull all the plugs and inspect for anything weird, check the coil packs for blistering of the epoxy resin (black shiny part on top) scorching of the well tube boot, corrosion on the contact spring inside the well tube boot, oil in the spark plug well, or obvious damage or wear to the spark plugs.

If you have 35-50k miles on those plugs I would suspect that's the problem, particularly if you're upwards of 20lbs of boost. What gap are you supposed to be running? What gap are the plugs actually at?

Are you leaking boost between the MAF and the intake? Are there other intake leaks? Is your catch can full?
 
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