Camshaft position sensor

see picture.. there are two in diagram.

So do I need to change both or what? I appreciate your help.

do not know the code so I do not know which one is bad. I would do them both.

It is po341.

first thing you have to do is check the VTC solenoid to see if it is working or has a plugged screen, then have a mechanic check for a stretched timing chain. after replacing both sensors then have a mechanic put them in sync with the crank sensor as this must be done with a scanner. it is like setting timing but you need a scanner to do it.