90 Taurus No Start Help

WEll as for spark I checked by putting starting fluid in the air intake and it starts but once the starting fluid is gone the car dies and will not restart.as for the fuel pump I check in 2 manners 1 I pulled the fuel line of the car and turned the ignition on the fuel pumped kicked on and fuel blew out into the gas can.2 There is a bleed valve on the fuel injector housing thats where you can hook up a pressure gauge to make sure you are getting pressure the fuel there shot up with over 39 lbs of pressure.somethings not letting the injectors fire fuel into the cylenders.now nappa auto told me that it has a camshaft sensor and crantshaft sensor.but I was also told by autozone thats there is a fuel relay switch that may be bad.I had just bought the car a few weeks ago and they said that the fuel pump was bad but as I discovered thats not the case.Please resond with what you may think it is (does my car have the cam and crank sensors?)or is the problem electrical?
Thanks Dan

3.0 v6 GL no start

yesterday I bought a new digital voltage meter.Today I spent all day tracing the entire electrical system and found alot of problems although none made it possible to start the car.I then went to the engine and looked at all the electrical and went through and made sure everything was connected corectly when I noticed that right off the ground cable from the battery there was a connector not connected to anything I looked everywhere to see if there was a place to connect it but I seen none I then noticed under the plasic cover over the radiator there was a electric box I dont know what the damn thing is but it had 2 bare wires on it and so I decided to plug them into the connector of the ground cable and tried to start the car and guess what it started ran real quiet but started overheating quickly.Now I got to find out why its overheating and a few electrical problems like the windshild wipers dont work they only move when you turn them on at first and thats just one wipe and thats it.But I am so happy the car is finnaly running I cant wait to get it on the road.Thank you all for looking at my post