I'm having the worst trouble finding documentation or YouTube videos of where the camshaft sensor is located and how to get it out. Getting codes P0349 and P0390 and wanting to try this as my first and cheapest step. Thanks!

 

The vehicle has 4 camshafts. And 2 camshaft sensors. They are located on the rear of the valve covers. You need a 30 torx to remove them. Both codes are for back 2. That would be the front/left cylinder head.