2000 Ford Crown Victoria Engine Hesitation

I recently degreased the motor of my 2000 P71 crown vic and was carefull to cover all the electrical parts and not get them wet. After hosing down the motor I let it dry and went out to run some errands and felt the car sputter at cruising speeds. On hard excelleration the motor hesitates and feels underpowered now. Car is welltaken care of and has just over 46,000 miles. I am nit sure if I screwed up a coil or plug........ any ideas?
Thanks,