Need Help, engine shutting down
 

I have a 04 g35 sedan 6spd
mods are stillen 2 exhaust, kinetix cats, stillen intake/w ztube, kinetix plenum, grounding wires.

When going 60+ and putting the car in neutral the engine shuts down, no steering or brakes, all the lights on the dash turn on. To restart I just put it back into gear and after a second everything is back to normal. At first I thought it was a recalled crank sensor or cam position sensor but infiniti said my car wasn't affected by those recalls. After researching on this forum it seems it may be because when in neutral at 60+,air is still rushing over the MAFS because of the aftermarket intake causing the car to shut itself down. The dealership said they couldn't pull any codes on why this would be happening.

Is the intake the problem or could it be something else?
What could I do to fix this? would a utec with tune help fix this problem?
Kinda scary on the interstate, I would appreciate any suggestions.

Thanks
Josh

try puting your OEM intake on and try to see if you can reproduce the problem. If you cant, then theres your answer.

Whatever it is the car thinks that's it's doing the right thing since it has no codes. It's one of the mods you have.

Make sure you installed the intake correctly...