2009 base won't start

BroJake

Hey all,
Like the title says my 2009 Z won't start.
Last week I was leaving the house and got about 200 meters down the road and the car just shut off. No stalling no sputtering just like I had clicked it off.
I pull over try to start it, and the starter works fine. The engine cranks fires once and then dies.
MIL is on at this point.
I checked oil levels all good there.
Get it pushed back to the house and plugged into an OBD scanner to find P0340 code stored.
This prompted me to buy camshaft position sensors and crankshaft position sensor.
This didn't fix the problem car still showing same symptoms.
I read on here someone had gotten Zs to start with this code by removing one Cam sensor and starting it in limp mode. So to somewhat rule out complete mechanical failure I tried this.
Car starts right up in limp mode with either or cam sensor unplugged.
I drove it to the dealership in limp mode. During this time it seemed to drive perfectly fine.
The mechanic at the dealership claims the vehicle had a stored P0011 code and that the cam sprocket is retarded -17 degrees.
So I've bought all the necessary timing parts and I'm getting ready to tackle that but I'm not entirely convinced that's the issue. If this was a timing issue wouldn't the vehicle run terribly?
Any information would be most appreciated.
Thanks all
Jake