alot of wrong in one day - need help!!
 

ok..so i started this morning by installing cross drilled and slotted rotors, along with cleaning the MAF, i drive the car around to check the new brakes and all of a sudden the check engine light flashes constant, not a steady light, it flashes. Come to find out after diagnose the coil pack is missfiring and the coil is bad. has anyone else had this problem after cleaning MAF?? or was it luck of the draw??

thanks for any insight in advance!!

Joe