My G is only 1 year old and its becoming reluctant to start. After turning the key, it feels like its about to die and then it starts. Sometimes it just dies without starting and I have to restart it again.
What's could be wrong?

 

dealership maybe?

 

weak battery, clogged maf, bad throttle body sensor, bad crank sensor...its under warranty take it in

 

dirty throttle body

 

^^
what g35rcr said...
And if you can't drive it to the dealer, call Infiniti RSA.

Do you have any mods?

 

I do have MREV+, 5/16 spacer and aramid gaskets + copper TB heater.
Any chances the dealer will blame it on that? What's a good mod friendly dealer in norcal? Which service advisor to speak to?

 

sounds like you have a leak

 

Check for vacuum leak before you take it to the dealer, I bet you find one.