In your boot, under carpet, should be like a aluminium cover and wiring harness going into this, take cover off, remove harness plug, there's the fuel sender. It's either held in by many 10 or so mm bolts or one big plastic/steel nut that holds the whole fuel sender unit down. Haven't taken one out of a skyline yet, sometimes takes abit of manuvering to actually get the sender unit out, careful not to bend the float arm. (take note how/where it sits before u remove it, making it sit differently when refitting may affect sender unit's float sensor (baffle plate may obstruct it from moving fully down, etc)). Final point, try not to enjoy the fumes too much, haha. :laughing-smiley-014: