With the primary wires to the coil disconnected and using jumper wires, it is possible to induce a spark from the coil, only for purposes of seeing that the coil will produce a spark. Run a B+ jumper to the positive side of coil--hold coil secondary wire close to engine ground-- connect a jumper to the coil negative side and touch to ground for a second then disconnect the ground, that should cause a spark to jump from the coil-wire to ground, correct? By using the jumper wires, your taking the ignition switch--pick-up coil--ignition module--computor where applicable, your taking these things out of the loop, just to see if the coil will produce a spark. As long as the coil was rated for battery voltage can't see how that test could hurt anything, domestic or import, brand new or fifty years old.
Another article gave the above info but used a capacitor on the ground side. Don't understand their use of the capacitor circuit? The jumper wire with the capacitor in series went from the coil negative terminal to ground? Then a second jumper that was connected to ground, was used to brush the coil negative terminal to cause a spark to jump from the coil secondary wire to ground. Why use the capacitor circuit at all??????
The articles I read were not year--make--model specific. Always use your best judgement and shop manuals before trying any tests. Any thoughts? thanks
I don't have a problem, just shooting the breeze today, too much time on hands. thanks