Toyota Repair: Oil Control Valve, air fuel ratio, cam timing

Question
2001 Avalon. 126,000 miles. For the past 1-2 weeks this car has had episodes of running roughly.Always runs well until warmed up.The timing belt was changed about 20,000 miles ago. The CEL stayed on this time. Following codes. P1150, P300, P302,P304,P306P1354.As a shadetree is there any way to check the Oil Control Valve? I believe this is the problem. There seems to be no sludge in the valve covers.
Thanks
John

Answer
The only reliable way to check the VVTi system is to activate it using a scantool that has this capability.This code is for a malfunction on bank two which is near the radiator which is also causing the misfire codes, this is also the cause of the P1150 air/fuel ratio sensor code. I would first check the cam timing on that bankif the cam timing is off it will cause these codes. It could also be a malfunctioning oil control valve or VVTi gear.