2009 ford code p0022 what test to find out what part to change

Question

what test should be performed to find bad part?

Answer 1

P0022 Intake camshaft position timing - over retarded

P0345 Camshaft  position Sensor "A" Circuit Bank 2

When the camshaft position is over adavance due to the variable valve timing solenoid, or the variable valve timing actuator. P0345 is a result of either of the two components. There is a TSB for this condition TSB # 11-12-5

These camshaft bearing cap  that get worn causes excessive oil leakage that make the variable camshaft  timing to loose oil pressure.