Hey my friend, i had code P0101, which is basically the same code you have. Here is the thread i started some time ago:
Z does not accelerate
You can also search here in the forum by P0101 and you will find similar threads too.
In summary, and in case you dont want to read up, took the car to the dealer, they cleaned the throttle bodies and 0 issues since then. CarlitosZ from the forum here also had the same issue and the dealer performed the same process and his Z is just fine too. Good luck!
