Can someone tell me how to change out the crankshaft position sensor on an 09 G37. Its not at the drivers side between tranny and motor like on the G35. I am getting the PO335 error code and the car has a hard time starting then kicks hard between gears etc.

 

I NEED to know this too! I just bought my G37 2 days ago and I've been having the same problem and code as you.

Did you end up finding the location?

 

It is located here:

 

Nice, thanks for this!

 

Replaced both camshaft position sensors and the crankshaft position sensor. Helped but still goes into limp mode at 3400 rpm. Codes P0011 which is advanced camshaft position timing on passenger side (bank one). Any suggestions???? Need help

 

Many aftermarket scanners don't give the correct or full description.
Nissan / Infiniti defines it as:
P0011: There is a gap between angle of target and phase-control angle degree. (Bank 1)

The first thing to check is the oil pressure. This will confirm or eliminate the galley gasket issue which seems to be popping up more as the engine age.
Here is a nice step-by step video:

 

How did you reach the crankshaft position sensor I've been at for 2 days

 

Are you still trying to get to it lol? J/K. I ended up having to remove / replacement mine several times on my latest project... Best way to get to is underneath the car with a socket on top of it with your feet facing the driver side door. It's a royal PITA if haven't done it before...

Here's a my vid of it. Hope this helps others in crankshaft sensor hell lol

G37 Automatic Transmission Swap cont. - Part 4 - Skip to 9.52 for crankshaft sensor replacement