Does anyone know where the camshaft position B is located on my 2008 Lexus rx350

 

That would be the exhaust camshaft, bank 1 I think. Lots of info if you search for:

"P0014 OBD-II Trouble Code: Camshaft Position B - Timing Over-Advanced or System Performance (Bank 1)"

 

Also P0015 OBD-II Trouble Code: Camshaft Position B - Timing Over-Retarded or System Performance (Bank 1)

Bank 1 is the side of the engine next to the firewall. These 2 codes refer to the intake valve camshaft, not exhaust.

The Engine Control Module (ECM) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. As a result of the angle change, the engine timing is advance or retard. Optimizing engine timing will help the engine improve torque and fuel economy, and the exhaust emissions decrease under overall driving conditions. The Variable Valve Timing (VVT) system includes the Oil Control Valve (OCV) and VVT controller. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control.

 

I believe it was p0016 was the code it was throwing. Engine now feels sluggish and struggles to shift into gear sometimes. Do you know how easy this would be to change myself? Or would you recommend a mechanic to fix it?

 

The description for P0017 is

P0016 LEXUS Description - The Engine Control Module (ECM) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. As a result of the angle change, the engine timing is advance or retard. Optimizing engine timing will help the engine improve torque and fuel economy, and the exhaust emissions decrease under overall driving conditions. The Variable Valve Timing (VVT) system includes the Oil Control Valve (OCV) and VVT controller. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control.

The vvti is on the passenger side of the engine near the top. I would think it would be fairly easy to change.