Return back to stock tune
 

My car is tuned for e85 and I’m sick of it. I wanna switch back to pump gas. Is there a fairly easy way to do this? Without changing the injectors or having to go back to the tuning shop.

you will have to go back to the tuner who tuned it and hopefully they have the stock tune, however more than likely they will have to retune the car for gas.

Nope. you need another custom pump gas tune. you dont need to drop your injector size unless they are really big and then you can have issues with pump gas. but if you are on 60s or 80s you should be fine