P1030 is a generic OBD2 fault code so unfortunately all it does it point to a certain condition on the Valvetronic motor system and does not provide specific needed data. A P1030 code could be caused by a faulty valvetronic motor, valvetronic eccentric motor harness is open or shorted, or Valvetronic eccentric motor circuit poor electrical connection. A full diagnosis of the system would need to be performed to determine the actual problem but based on the fault code it's for certain and issue on the Valvetronic control side of things.