Quick what's this?
 

3rd gen 99 fd type R
Quick what is this? It goes in the coolant filler neck housing, my best guess is a temp sensor but it only has 1 wire going from it (which I just snapped off accidentally) and the case and threads are plastic
https://cimg7.ibsrv.net/gimg/www.rx7...79112a387c.jpg

looks like a coolant level sensor.

Yea.
http://www.ebay.com/itm/like/350940729889?lpid=82&chn=ps

awsome guys thanks a bunch, for 75 bucks im gunna try and solder the wire to the nub on this one first and if it doesnt work then ill have to shell out for that, but at least i know what it is now

thanks again

Once, I took a needle and put some hot solder on it and let it cool. Then I stuck it in the sensor where the wire was broke off with a pair of pliers and cut the needle about 3/8" out of the sensor, then I soldered my wire to the needle. I imagine the solder on the needle inside heated up as well to the inside wires. Heat shrunk it and it worked fine. I found a deal on the sensor a while later and swapped it out but never had an issue with it.