Starting about 3 weeks ago, my car would jerk or surge at little at idle. I'd say about every 45 sec. to a minute at stops.
Now it has started to do it when I am taking off from a stop.

I tried checking ECU codes but they came up clean.
I cleaned the throttle body, changed the PCV, Air Filter, Gas Filter.
Still the same thing.

Anybody got any suggestions of what to check or do next.