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I have an 03 115 hp suzuki that is not firing on 2&3 cyl. I have checked the coil, tests good. have power to coil and out to ecm. injectors have power. will check if good today. beeper code indicates rectifier, but it is putting out 14.5 volts. i have changed the ecm with my spare and still same condition. i am thinking it might be either cam or crank sensor, but neither is codeing out. have checked all the grounds to the ecm, all good. made a good ground on the coil.