The Fuel Tank Pressure Sensor service begins with removing the rear No. 2 floor board, rear deck floor box, rear No. 3 floor board while unconnecting the negative battery cable for at least 90 seconds to stop Air Bag and seat belt pretensioner activation. The service requires the removal of seven components including lower center instrument panel finish, rear seat cushion, rear floor service hole cover, front floor brace and front exhaust pipe and fuel tank sub-assembly. To extract the fuel tank pressure sensor out of the fuel tank retainer locate the sensor connector plug then release its tube joint clip while maintaining the sensor O-ring seal Install the new fuel tank pressure sensor by pushing it into the fuel tank retainer plug while positioning the tube joint clip securely without foreign materials inside. First, reconnect the fuel tank pressure sensor connector and complete installation of the fuel tank sub-assembly, front exhaust pipe and negative battery cable before reinstallation. The work sequence includes inspection for fuel and exhaust leaks followed by front floor panel brace and rear floor service hole cover installation after which you should install the rear seat cushion assembly, lower center instrument panel finish panel and rear No. 3 floor board and rear deck floor box and rear No. 2 floor board. Specific product requirements demand initialization steps after reconnecting the negative side of the power supply.