sadclubman.. might go to the north american motoring website.. this is mostly all classic minis.. later bc

So here is my issue. I have a 2010 Clubman w/ 122k on it. I recently replaced the vanos solenoid, plugs, one cam shaft position sensor (did know there were two )  valve cover gasket and one bad coil pack.  My engine light is still on, engine still hesitates real bad when I accelerate, will stall occasionally, has what i would describe as not a rough idle but inconsistent (ie like timing is off)  and it does sometimes blow smoke (white/blue) after driving for about 15-20 minutes. Any help would greatly be appreciated.  Thank you.