96 maxima with a po302 code please help!!!

Question

HELLO- MY WIFE TOOK IT TO THIS MECHANIC BY MY HOUSE AND HE DID THE SPARK PLUGS AND DID NOT HOOK THE COIL UP, SHE LEFT AND DROVE IT HOME AND SAID IT WAS REAL ROUGH AND THEN A BACK FIRE WHEN SHE PARKED IT, I TRIED TO DO THE PLUGS AND COILS AND MY CAR IS STILL REGISTERING A PO302 MISFIRE ON THE 2ND CYLINDER, ANY SUGGESTIONS TO FIX MY PROBLEM??? THANK YOU VERY MUCH!!!!

Answer 1

P0302 Misfire number 2, move the coil to a known working cylinder which will be numer 4 if the misfire move you will need a coil