Camshaft variable timing solenoid failure, Engine oil level is too low, The engine is not timed correctly, The engine oil does not meet the manufacturer's requirements, Variable valve timing actuator failure, Worn timing chain

In most cases if P0012 comes up it is due to lack of oil lubrication. The best way to rectify the situation is to apply an engine cleaning product and do an engine rinse before re-installing a new VCT/VVT solenoid. If that is not done you will have near future failure of the new VCT/VVT solenoid. It is very important to note in the new VCT/VVT engines they are very susceptible to lower cost oils. You need to purchase high end oils in order to have a longer lasting camshaft oil timing system.

You definitely get what you pay for in this case. Bank 1 or bank A VVT or VCT solenoid failure. Different manufactures use these terms but both systems are the same. VVT- Variable Valve Timing VCT- Variable Camshaft timing You have an intake camshaft solenoid error usually. Not manufacturer specific, is a generic code. Bank A or bank 1 if a 4 cylinder engine. Depending on the type of engine if you have two banks then will have a bank 2 error. Then go into a P0022 code situation.