Hello. The codes listed are indicative of lean conditions on both banks A and B, as well as issues with the camshaft position sensor for circuit B. A lean condition at both banks can be caused by many things. A...
These are all possible causes for code P0021: Bank 2 camshaft sensor or Bank 2 cam timing solenoid faulty Connector terminal contact is damaged or corroded Wire harness - Check harness for correct voltage Open, short to ground or short...