I bought the car 6 months ago and over drive light
Being flashing on and off since but a month ago transmission
First shift takes longer to shift car was shifting ok
When I first got it did and oil change and filter but did not
Work still doing same thing what could it be all engine
Ligth came on put a paper clip to get code I get 7 flash and pause
Then 1 flash is code 71 and if it is what those it mean
If you could help me thanks!