A few parts...
 

Hey guys,

Just to fill you in. I have a 2010 370z GTM Twin Turbo Kit. I have about 33,000 miles. Check engine light came on, these codes popped up for the 2nd time. (reset them the first time)

P0171- Fuel System Lean- Bank 1
P0820- GR LVR X-Y POS Sensor
P0830- Clutch IntLock SW/CIRC
P0833-Clutch P/P SW/CIRC

I need help actually finding these sensors and buying them. Please post links where I can find these sensors. I could not find them and I went to the dealership and they seemed clueless.

Thanks in advance

Those are all covered in the EC section of the factory service manual:

Factory Service Manuals - NICO Club

Yeah but where in the world do I buy these? I'm not worried about finding the O2 sensor.

The Nissan dealer can sell you any part your Z is made from of course.

I understand, but I can't even find the part number for these parts. The o2 sensor is easy to find, but the other sensors are not.

If you can locate the parts in the FSM - the parts counter guy at a dealership can help you track down which numbers they are.

Otherwise, you can use what you find in the FSM as a guide to locate the parts in one of the online nissan parts retailer db's like courtesyparts.com

This is not a parts list that you posted, it is a list of problems. So there is an important step in-between that you are overlooking.

These trouble codes are used by service technicians for diagnostics. The service manual linked provides you with the same general set of procedures they will run through to diagnose each trouble code if you wish to do it yourself. The diagnostics procedure is effectively how you will translate the list you have into actual parts with part numbers.