[DSG2003Mach1]

all of the electronics for the fuel system are on the driver side of the car. The fuel lines run up the pass side underneath the car but I cannot see the accident you're describing having anything to do with the misfire/hesitation.

With misfires, unless they are severe, you have to have a certain number of misfires in a certain number of revolutions to trip the light if I remember right.

Weak coil(s) can be fine at idle and start to break up under load