can the coil going bad cuase a miss fire at certian rpms?
dame kurt. Were they all OEM or aftermarket? Mine went bad once when i installed the digital 6 in my car. And yes Magic rpm miss fire was 4k. First i thought it was MSD box but it was the coil. It was one of those new MSD ones too. I switched abck to the old MSD one and it's trouble free. Older ones are better IMO for MSD coilEvery coil I ever had go bad on me, just died, no warning. I've gone through at least 7 of them.
Kurt