I am not sure about the piece you are pointing out in yellow, but there are two camshaft sensors bank 2 on the front and bank 1 on the rear.
For the errors you mentioned above, they both relate to the bank 2, (either a short or a dead sensor). The sensor actually can be removed and examined.
Thanks for the reply.
I already changed the left side (radiator side) sensor. It was really easy to get to. That is supposed to be bank 2, but someone mentioned something about "how are your oil changes?" and that there is a sensor somewhere (I assume a rheostat or varistor pressure switch) that monitors the oil pressure and adjusts the timing according to the perceived load on the engine. They replied that is probably getting stuck at times.
So that was my question.
I called the dealer for an appointment; but he inspired NO confidence in their ability to fix the problem if it doesn't act up when they have it. So, basically, I know what is going to happen. I take it. It doesn't mess up. I go get the car. I pay $200 for the parking space in their lot for a day. And drive a broken car home waiting to screw me again out on the road like it has 3 times now.