The Vapor Pressure Sensor is employed in 1996 through 1997 California models and all 1998 and later models, located on the top of the fuel tank. In California models from 1996 and 1997, and 1998 models, it bolts to the top of the flange that bolts the fuel pump/fuel level sending unit in place. However, in 1999 and later models, it is located in the front right corner of the fuel tank where it is bolted directly on top. To remove the sensor, remove the fuel tank, then disconnect the electrical connector and remove the two nuts holding the sensor. The removal of mounting nuts allows you to take the sensor out. Installation is carried out in the reverse order.