What causes it to come on (after reseting it) is when I floor the accelerator and let it accelerate for a few seconds that way. It'll seem uneven, then the light will come on. It seems as if the car accelerates stronger and smoother at 3/4 throttle.. Any ideas?

It is a California model with an X11/4 connector with impulse readout and I have the list of possible codes, however I can't seem to get a reading from it after pressing and releasing the button with the ignition on/engine off.

Any Thoughts??