Replaced the harness, symptom persists.

Slight miss/shaking engine at idle. I did notice one time while playing around this morning that my accelerator pedal had to be pressed further down to get a throttle response.. all is back to normal now. The ABS and ASR lights come on at random now when you start the car.. 50/50 chance if it coming on at startup and they don't go off until you shut the car off.. I don't know if this could be a hint??