2007 Infiniti G35

Engine Performance problem
2007 Infiniti G35 6 cyl All Wheel Drive 33000 miles

When I take off from a stop, the car power surges then drops, sometimes dangerously as I get less power as I enter traffic.
March 21, 2010.

Hi pbluman, Welcome to 2carpros and TY for the donation

Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note: If it doesn't apply disregard.

Mar 22, 2010.
I am having the same problem. I have noticed it when I start from a stop and the engine is relatively cold (first 5 minutes or so) or if barely pressing accelerator on highway. If I put the hammer down it goes away. Interested in answer as my dealership wants major $$$ everytime I go in there.

Feb 27, 2013.