Jump i y after bang nozze

after i have printed a shot bit my printer wil make a bang nozze and when it jumps in the y axis
i have triet to change the stepper with the filement stepper but it diden work

You might want to try some of the suggestions found on this page.
http://www.k8xxx-3dprinters.crimed.be/w/index.php?title=XY-Carriage_Alignment