One problem related to service engine light on has been reported for the 2008 Infiniti G35. The most recently reported issues are listed below.
The car idles when taking off even after warming it up. . . While cars are passing me by. It acts like it wants to cut off while in traffic. It was raining on the passenger side. I can't even filled the car up with a full tank of gas. Only had the car for 3 weeks and the service engine soon light come on. Took it back multiple times and still not fixed.