Fit Vehicles: 1998-1999 Mazda 626 2.0L 1997-2000 Mazda 626 2.5L 1995-2002 Mazda Millenia 2.3L 1995-1996 Mazda Millenia 2.5L 1997 Mazda MX-6 2.5L Features: Extensively Tested During Manufacture to Guarantee Quality and Reliability Supplied With a Factory-Fitted Connector for Easy Installation Precision manufactured with a sensing element incorporating premier technical ceramics Where are my oxygen sensors located? Diagnostic Trouble Codes (DTC) .