Speed Sensor: 88-93 V8 GMVarious Speed sensors are used from 88 93 Era Camaro and Firebird TA V8's, but mainly this one.. for the 4speed auto, 5 speed manual, TPI cars & carby alike. Speed sensor for most CAREFULL.. NO RETURN OR PLAYING WITH THEN RETURNING Brand NEW SPEED SENSORS. these have been 100% perfect. unlike older ones or cars with other related faults. If you think as a few folk have that "its worth a try" to get one and fit it than say its faulty like yours..