No spark after ingition module replacement

I recently changed my voltage regulator and the new one was acting very strange. Ended up finding that the terminals in the plug were sprung and not making good contact. Gave them a slight squeeze with some needle nose pliers and it worked great. Your problem may be a similar issue. Also, I always run a ground wire to the ignition module body to the frame. Those sheet metal screws usually don't pull tight enough for a good ground. You can also replace with a regular bolt and put a nut on the back side. You can reach inside the fender well to get the nut on.