RQ1986

So i am new to all this and i am not super car savvy. I have a 2009 g37 coupe. I've noticed when i start up the car after not using it for some hours it starts up fine but then i push to start, turn it off right after then turn it on, it sounds like it struggles to start up. Have any of you experience this before? I have already checked the battery and it's not it

serega13

iTrader: (2)

Probably throttle bodies need to be cleaned, they get a lot of carbon buildup inside of them, I'm about to do it myself on my 2008. Take it to dealer or do it yourself with some carb cleaner.

https://www.myg37.com/forums/d-i-y-i...le-bodies.html

RQ1986

awesome, thanks so much. Does this problem happen to you as well?

xxg00w0

iTrader: (1)

Or it could be the battery, Happened to me 2 months ago, after I replace the battery and it's fine now.

RQ1986

yeah, I had the battery checked out and it wasn't it, I have a feeling it is the throttle bodies.

serega13

iTrader: (2)

Yeah happens on my 08 coupe and on wife's 09 sedan. Was gonna clean both of them in the spring. Never had this issue on G35 though but I cleaned throttle body anyway, it will run a little bit better after cleaning, just have to be careful with batterfly valve so it doesn't need to do idle relearn which is a pain to do without Nissan Consult tool