if an engine cranks but will not start, one of the first things you should check is spark. No spark at any of the plugs usually indicates an ignition problem that requires further investigation (a bad coil, ignition module, distributor pickup, crank sensor, etc.).
Fouling can occur if fuel or oil deposits build upon the plug electrodes.
Worn valve guide seals and guides can allow oil to be sucked down the guides and into the combustion chamber. A heavy buildup of thick black deposits on the plug and intake valve
would indicate such a problem. Worn or broken rings, or damage to the cylinder wall can also allow oil to enter the combustion chamber and form ash deposits on the plugs.
http://www.aa1car.com/library/sprkplg2.htm
brief spark plug lesson.. do you have any of those symptoms?
next time merge them in the Original Thread!
also do a google search with NO spark AT and click on the suggested sites. preform those tests, if still nothing come back with more info on what you did. what your car is doing. in the same thread. don't start a new one. =) let us know