1994 Geo Prizm

It clicks. We know it is either the coil or the internal ignitor, but need to know how to really determine which one before shelling out the money to replace the part.

I would check the starter if it just clicks and the car wont start. Thats what had happened to my 96 prism. Had to replace the starter

Well that has already been eliminated as a factor, the simple matter is that there is no spark being created. The battery works and the person who works on my car. That was the first thing he checked, and that was not it. He narrowed it down between the coil in the distributor or the internal ignitor. Something there is not creating the spark or firing for the spark plugs. There is enough voltage coming from the battery. My lights in the car work, my radio, power windows and locks, and this was all of a sudden. Worked perfect last night. Also checked all fuses. Once we know which it is we can fix it, just need to know how to check how to know which is dead. Can't afford to keep buying stuff that is not fixing it.

I had the same problem with my 94 Prizm, about the same time you posted this thread. Turned out to be the ignition relay switch. Hope this helps. If you haven't fixed it yet.

I had that problem turned out to be a bolt in 40 amp fuse in the fuse box under the hood I had to go down to the junk yard to find one because none of the auto parts stores carried it.