I have a 2001 camaro with A4 4L60E transmission. After installing my last tuning something went wrong with my trans!! it will smoothly shifts 1-2, 2-3 and 3-4 but it will not downshift 2-1/3-2. Manually it will but in D mode it wont. I re-installed the stock file but no changes happened. I thought it may be from the trans it self, so i replaced it with a new one but still the issue is there. can any one tell me what went wrong?
Here is my last tune and i hope that someone can look at it and help me solve the issue.