2013 Accent P0016, P0017, P0326, P0366
 

Accent throws up above errors. Also battery light comes on while driving if radio, fan on high.
So far on advice from local mechanic replaced:
timing chain
Cam phazors
Crank sensor
cam sensors
oil control valve
ECM/ECU

He has checked all the wiring, verified alt is charging and has no open or short to ecm. (also verified timing is correct).
His last advice was ECM but after replacement I have the exact same problems! Any and all help is greatly appreciated!