jeep grand wont start

I have had a problem starting my 94 jeep grand cherokee. I have changed so many parts it is not even funny. first here are the symptoms car will crank but will not start, it is not getting spark at the ignition coil or the distributer or the plugs. I have replaced (because of this prob) fuel pump, filter, pressure regulater, plugs, wires, cap & rotor, ignition coil and the crankshaft pos. sensor. I am busting my head against the wall with what it could be if anyone has any idea please let me know. I read some one else in the chrysler colum was having the same problem please if you know or even have an idea I am willing to hear them I am getting quite cold working on the garage floor. I also have an e-mail @ offroadnick DeleteThis @sbcglobal.net if you have problems with the web site