OK I've had my G for about 3 years now and the only things I've done to this car are the oil changes at the dealer, new tires, brakes and a cleaning of throttle body.
lately, about 3 months ago, the car has bee shutting off after i start the car, maybe it has happened 3-4 times (once a month). it immediately shuts off after start. RPM needle goes up at start (normally) and when comes down it goes too low and dies. electronics stay on. After the first try then it starts and rpm needle stays on normal idling range.
now my question is: is it time for a tune up? I have 79k miles on the G37X and i'm planning on driving it for at least 2 more years. What are the first things i need to do to my G to make her feel young again?
Thanks in advance!

 

When you say its shuts off after start up does the engine stall? Sputter and die? electronics stay on?

 

it immediately shuts off after start. RPM needle goes up at start (normally) and when comes down it goes too low and dies. electronics stay on

 

does it throw any codes when this happens? Its quite an odd condition, I would get a multisystem OBD2 reader to see if any stored codes are coming up... is your idle below 550RPM? (say between 500 and 550) or between 550 and 650? below 500 the car should die, but between 550 and 500 its not set right but wont die the RPM drop condtion may indicate that you need to do the throttle relean and idle reset again

 

 

This also happens to my g37 2011. It's so intermittent that I can't replicate it to try to troubleshoot it. It usually only happens when the car has been driven and is warm.

No check engine lights occur, however I have been getting P0106 every other week. There's a TSB that solves the P0106 code by having a dealership perform a software update. However I'm not sure if that code has anything to do with the random stalling. I just clear it with Torque every time it comes up.

My G has been doing this random stall after a warm start for about a year or more now. Cleaned the TBs, MAFs, did all kinds of initialization and relearn procedures and nothing helped.

 

i'll mention this problem at the dealer the next time i go for an oil change. hope they won't try to make me buy all this extra services

 

My car (2012) is going back into the shop for the same thing. Issue happened the first time and threw a P01016 code. Replaced the Vac sensor and the code went away, but the issue is still there intermittently. Never happens on a cold start, only warm. When it was coding, it would do it on every start. Had to give it some gas to get it to "catch" and stay on.

 

As mentioned above, been discussed many times with no solution. I have the same issue. Only happens when I've driven for a while and parked for a short time and only in cold (below 32F/0C) weather. Never had a code. Originally I just tried it again and it would take two or three tries to start. Now I just give it a bit of gas before it drops on the second start and it stays running. First happened around 80,000km and still happens at over 140,000km.

Was going to try to clean throttle bodies as it was believed that solved it but recently I've been reading that it doesn't help.

 

i had the same issue with my g37x for over a year, sometimes check engine light was on and sometimes wasnt but car was doing same thing
after cleaning sensors and both TB car runs like champ! no more check engine light and the RPMS dont jump

 

I didn't realize so many others were experiencing the same thing. Just like you guys, my problem only occurs when the car has been driven and the engine is warmed up. I park the car to run in a store for 15-45 minutes and when I come out it may happen. Early morning cold starts to go to work I never once had this issue.. I also have to give it a little gas on the 2nd start up to keep it from stalling out again.

Cleaning the throttle bodies and MAF sensors did nothing for me even though my throttle bodies were dirty.

 

This happens to my 2011 as well. Happens about once a week. Will start, then just sputter out and die. All electronics stay on.

I have to restart car and rev the engine to get it to stay on.

 

Yes! Same thing happens to me.

Have to give it gas to 'catch'

 

Used to happen to me after I installed a catback. Hasn't happened after I got a tune.

 

Who did you get your tune from