1) French cars law is that cylinder #1 starts from gearbox side.
2) Make sure you are taping the right code as do not mix 0 and o or 1 and I
3) is this the new injector or the old one which is not accepting the code.....?
4) Try disconnecting the injector plug and see if the car starts so you can rule out if the is faulty and causing car not to start...