i have an 06' nissan w/75,000 on the odometer. my service engine light went on and the code reads that it is the low level fuel sensor 1-high voltage. no nissan dealer online lists this item,all schematics for it on the internet show the only thing for sale is the fuel pump as a whole. my manuel says it is on the bottom of the fuel pump module. am i stuck paying $300+ for the pump or does anyone sell the sensor online separate? thanks for the help