fuel....
 

I have a 1985 mazda rx7 and drove it home from the guys house everything ran good for awhole then once I got on the gas it conked out.. thought it ran outta gas so I put some in it and it ran for awhile then died again.. finally pushed it to a gas station and got gas staryed right up then died again... towed it home and put it on the lift and relized I needed to replace all the fuel lines and everything dealing with the fuel system... when I changed the fuel filter there was pieces of rust in the filter dropped the fuel tank and have replaced the lines running to it.
http:// http://db.tt/oEJBwGIH
This is the fuel level sensor.

There is some sensor here that I cant figure out what it is anyone can help me out ide greatly appreciate it.
http:// http://db.tt/mKH56R9b

picture