Hi 3050 RPM
I already took the rear seat off, also port cover. Took the car to the gas station filled it up and found "No Leak" from the O ring in the sender unit nor from the hose's that were visible. Almost positive the leak is from the left and right vent hose's that are not accesable from the fuel sender port.
Today the oxygen sensor light turned on. I have to research that also.
Thanks 3050 RPM