What’s going on everyone I have a 03 G35 completely stocked no tunes or anything. So long story short When I try to crank it struggles to start but eventually it’ll start with a ruff idle with smoke. I’ve changed the spark plugs today and drained the old oil and replaced it with néw oil. Any open suggestions on what you think it could be or options on what to do I’m completely drained and do not want to sell my baby

 

Compression test to make sure you have enough motor left to justify fixing it. If you're blowing smoke that's definitely questionable.

 

I also have a video

 

What color is the smoke and are you getting any codes?

 

Blue-ish white smoke

 

Sounds like you have an oil burn issue. Were the plugs wet with oil when you changed them? See Cleric670's response to a similar thread:

https://g35driver.com/forums/g35-cou...g35-coupe.html