Cam sensor location
 

Hey guys, been in here for yrs, but haven't been back in a while. Anyways, im having an issue with code p0018, idk which camshadt sensor to replace lol. It says bank 2 sensor A, I get bank 2 is driver side, but is sensor A the intake or exhaust sensor? I can hit the back of the upper sensors with a multimeter and they seem to be working when metal passes it, lile a wrench or screwdriver. (Sensor out of the car obviously, lol) The lower one, I can't pull the runner plugs out that help weatherproof the wires going into the connector, so I'm unable to test. So that would tell me it's the lower sensor that is bad, but idk what one to order as their is an intake and exhaust camshaft sensor. I've tried search here and searching across the internet and just can seem to find this little bit of into I need.