Its the signal coming from one of the internal components in the distributor....Crankshaft position sensor/TDC sensor disconnected or interuption, TDC no signal.... What I would do is check the TDC coil (inside the distributor and see if you get continuty..... These parts can be replaced ( not sure if you can purchase them from the store) but it would take some soldering work. But you can repair the distributor you got.... no need to get a replacement unless the bearings go out or something

Code 8 would be either of these parts in part by part failure, loose/bad wiring or a misreading from the ECU at times......