I have a 2003 g35 with 180k miles on it. I've only had it for less than a year and put about 7k on it myself and plan to keep it a while. Today while I was at a red light, I noticed the car was shaking and felt like it was going to stall. I put it in neutral and it stopped but when I put it back in drive it started doing the same thing again. When I accelerated, it seemed to drive fine, but I'm really worried about this. Does anyone have any ideas as to what could possibly be the problem? I just had an oil change three days ago and was told the serpentine belt was going and that I should get a fuel injection cleaning but that was all.

This is the first time this has happened and I'm afraid to drive it. Any info would be much appreciated!

Ever check your air filter?

Telcoman

Has it done this more than once. Water in the gas or some other contaminant.