Hello yesterday I took my car to a friend's house who bought it expensive tablet car scanner show me all my problems the failures. i deleted all the codes to run it and see which cods popped up agen . I was leaving his house. I started my car fine put it in Drive it goes forward but my accelerator pedal has no function at all when I got there it was fine but once I deleted the codes my accelerator pedal would do nothing can someone help me please