i just ran the vin on carfax to find it has failed immisons a few times whatr would cause it to do theis and would it still be a good buy

07/13/1993 Florida
Passed emissions inspection
Inspection Station
Tampa, FL

11/11/1994 Florida
Passed emissions inspection
Inspection Station
Tampa, FL

08/25/1995 Florida
Failed emissions inspection
Inspection Station
Tampa, FL

10/27/1995 Florida
Passed emissions inspection
Inspection Station
Tampa, FL

12/31/1995 Florida
Passed emissions inspection
Inspection Station
Tampa, FL

08/29/1996 Florida
Failed emissions inspection
Inspection Station
Tampa, FL

08/30/1996Florida
Failed emissions inspection
Inspection Station
Tampa, FL