Is that embarrassing or what? Stalling out like a newbie who didn't give it enough gas, right? I've stalled 1st and Reverse in front of people on a hot day. A/C running wasn't helping either. It doesn't jerk the car... just dies. It's embarassing.
The only thing I notice about VDC OFF is the slightly improved throttle response (i.e., the ECU doesn't hold back as often). The power cut does feel like VDC kicking in, and as many owners (even G37) describe that slip lights don't come up. Plus, it's not full throttle acceleration.
Once my car is back on the road I may experiment with electronics cooling spray. There are so many variables with this car that may contribute to hesitation under acceleration: MAF, CAS, O2 Sensors, etc. It doesn't make sense since our cars idle fine. I think fuel economy is fine, but I don't know if it's running rich. The roughness seems like lean condition and fuel trimming.
I did some more reading about hanging revs, and I think it's to burn off excess fuel for reduced emissions. There's not much we can do there.
I'm honestly not much of a mechanic and don't know squat about this stuff... I Google all this stuff.
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