Is your check engine light on due to a faulty 1979-93 Mustang Oxygen O2 sensor? Get replacement sensors today. Oxygen sensors can fail or become damaged over time causing your Malfunction Indicator Light (MIL) to turn on. Get your SVE and Motorcraft replacements today at LatemodelRestoration.com. Upgrading to long tube headers? Pick up a set of 02 sensor extensions for an install done the right way. These parts are for your 1987, 1988, 1989, 1990, 1991, 1992, and 1993 Fox Body Mustang.