Follow the cables, if your engine has a distributor, the high tension centre one (on the cap) goes to the ignition coil. The low tension side of the ignition coil (and also some thinner wires from the distributor) go to the ignition module. This is the typical setup with cars having a distributor.
Maybe you also check the vacuum hose from the distributor ?

Last edited by Cerberas; 25/06/24 01:24 PM.