I have tried to diagnose this problem I have checked the VVT's and the resistance was 7.5 and 7.6 and was wondering could the resistance be good but the solenoid will be bad? The wiring is good the timing is good the flywheel is in the correct spot and I have installed new sensors from the Nissan dealership. ( Crankshaft sensor and Both Camshaft sensors) The oil is at the correct level and the oil is clean. I have put Pennzoil 5W-30 in with a K&N oil filter. I checked the ports where the oil goes to the solenoids and they're clean as well as the screens that are on the solenoids no sludge no nothing on them. My question is it common for a solenoid to have good continuity but not work? Also the car does run perfectly fine starts right up and idle like its suppose to, all I'm trying to do is remove these codes from coming up in the future.