The engine code P2034 tells about the main thing what you need to check is to validate the operation of the VCT solenoid. If you are looking for a penetrating or stuck VCt solenoid valve triggered by contamination. Mention to vehicle exact restoration manual to achieve element tests for the VCT unit. You will find many things in the car engine what you may need to solve. Better you allow an automobile engineer to solve the car engine problem. An automobile engineer will find the problem and he can fix the car engine properly. Do not take wrong step for solving the car engine problem.