This could be throttle body or accelerator pedal sensor,
Who did the diagnostics the Dealership or a Indy shop , if indy shop check which scan tool or code reader he used .
As the codes for this problem are manufacture codes and a lot of aftermarket tools will not pick up these codes .
Then if they did use a dealer level GST then you need to check the throttle sensor and pedal sensor for glitches in
live date streaming mode if no codes are found ..
Then if needed please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.
If i do not get back to you then i may be off line, and when i get back online i will get back to you..
Your deposit does not pay me until the answer is rated in a positive way,
Not rating or a bad rating does not constitute a refund.
If you are not happy or you have sorted out your problem before the answer then please let me know with the reply button .
Kind regards Greg.