Why do you think the injectors are clogged?
Have you checked the OBDII for error codes.
Clogged fuel injector(s) can cause cylinder misfires, resulting in surging and/or bucking.
Misfires will set OBDII error codes. You may get one general misfire code, or a code for individual cylinders.
Some transmission problems will also set error codes, depending on how many items the system monitors. Check the easiest things first -- make sure there are no injector/misfire problems.