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Pulsing of the MSD
vector1 Mine does the same thing when I turn the key on. It's a spark pulse. I have found no problem with it. No burn marks on the cap or rotor. I think the trigger in the distributor sparks the system if the rotor is in the correct location. I have both crank and cam sensors on my system. With FI all the fins in the distributor are removed but #1 for the sequential firing of the injectors. The advanced wieghts are locked out anf all the timing is controlled by the ECU. Rick L.
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