Been trying to get the fuel trims ironed out on this 2010 camaro with stock motor and A6 with a single turbo kit running on a SD operating system. The car has ID850 injectors and ive imported all the settings from ID.

You can start the car and the trims will be in check +-2% and the next time you shut the car off and restart it they might be consistently -10 to -20% or they sometimes go all the way up to +20% just depending on how the car wants to act that time you start it. Another time they will all be in check again without changing anything.

LTFT are turned off since the o2 sensors are after the turbo in a single pipe . Having them before the turbo didn't work very well since the back pressure threw the sensors too much.

Any input would be appreciated.