Is this normal? My car wants to stall sometimes while sitting at a light, but never actually does..

 

That's way too low, the car should be idling at 800rpm's

 

If your A/C is off, thats why.

 

even if the A/C is on, it idles just a tad bit higher...

IDK whats wrong.
Ive done everything,
Sparkplug, cleaned throttle body, changed air filter...

 

where does it idle at when the a/c is on?

 

There's a DIY to reset your G35s idle....SEARCH! Your idle is way too low, s/b between 650 & 700RPM warm.
Gary

 

ive tried to reset my idle many times, but it never works..
This sucks..

my idle is high when cold and drops down to this when its warm..

 

mine too and unfortunately you will more than likely have to go to the dealership and have it fixed im having the same problem and done all the steps on the diy on here with nothing. i called and they say there is a computer tool that sets the idle? i haven't taken mine yet bc they want some crazy amount to do it.

 

how much do they want???

And how much do they want to diagnose it??

 

lol my idle is the same as yours

 

Mine never went that low...lol

 

Meh, possibly clean your throttle body and see what happens

 

That's where mine idles at too. I suppose I'll try the idle reset and see what happens

 

diagnostic fee is 90 something bucks and to fix it was like a couple hundred if i remember right.

 

i had a friend that works at nissan hook the consult computer to reset my idle....took 5 mins.