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Remember the old days when you could check your “Detroit iron” engine for spark by just inserting a spare plug into the wire, laying it on the block where you could see it, and cranking it over? (Or maybe you conned your younger brother into holding the wire — just once.) With new coil-on-plug ignitions, those days are gone.
Thankfully, Wakeon’s coil-on-plug quick probe makes the process even simpler — and safer — than before. Just press the probe’s antenna against the ignition coil and it’ll flash an LED strobe each time the coil fires. It also flashes a green LED to indicate sufficient arc duration.
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