I have 3 codes that start out The electronic throttle control system

What is your question?

The codes are P2101, P2119, and P2176. Also 3 others P0700, P0121 and P0638. What is my first thing to replace the throttle body? At first the light just came on, but now it goes into limp mode everytime I try to drive it.

What makes this problem better or worse?

IT IS JUST SLOWLY GETTING WORSE THE MORE I DRIVE IT.

How long has your 2003 Saturn Vue had this problem?

A couple months , just a couple days of the limp mode