There are two probabilities. Unfortunately, the one with the highest odds is the distributor sub-assembly that includes the ignition module on that car. the sub-assembly is the most common failure on the early 90's Civics assuming that the distributor rotor, cap and ignition wires are relatively new. The ignition coil could be the second possible problem if the cap and wires and rotor are okay. I'd recommend starting with the cap and rotor if they are old, then the coil as those are the cheapest. You should be able to test the coil with an ohmmeter prior to replacing if you have one and know how to use it. Otherwise, aftermarket coils are pretty cheap. If it is the distributor sub-assembly, that is a honda only part unless you can find a used distributor in a salvage yard. the other possibility is that your timing belt is broken. If the belt breaks the camshaft won't turn and the distributor won't turn. You can check this by removing the distributor cap and having someone turn over the engine while you look at that rotor. if the rotor is not turning, the timing belt is broken.hope that helps