I have a bad fuel sending unit, or at least i think I do. My reasoning is that when i fill it up and drive 10 miles it says i have half a tank but if i fill it back up it doesnt put anymore in. So...can I do this DIY? i would think I would be able too, but i dunno. And what kind of sensor do I need, I was looking at them online and they had a whole bunch of different ohms levels.

Thanks!