Thank you for the reply. I'll check it out. By the way this all started when I had a rough idle and found out that none of the cylinders are firing consistently. I've check every possible reason for this and any repairs that I have done to the ignition system has changed nothing at all.New ICM,plugs,plug wires,coil,cap and rotor,pickup coil,distibutor,any elec. plugs that looked bad. There is just no change at all. Also, could you possibly tell me where the resistance wire is on a 1978 pinto?