What would cause an ignition rotor to fail in this manner? Car has ran smooth following the upgrade from the 2.6 to the 3 liter. Brand new Beru non-resistor plugs were installed less than 600 miles ago. I developed a slight rough idle yesterday, checked everything and found the hose to the iacv was somewhat loose, so I sealed it up. Car started fine this morning, but as I was driving I lost power doing 80 mph and cruised to the shoulder. The car would not start so I had it towed. I checked the codes and got error #3 CTS. I tested the CTS against 2 others and all were within spec of the FSM, but I swapped it out anyways. Still no start. So I read someone's post on here about how they replaced their rotor because of a no start issue and the replacement worked for them so I thought, I may as well check mine, even though it was replaced in Feb of this year and sure enough this is what I found. I just put in a Bosch rotor, but I think this one is Bremi (made in Italy)??? Not sure.

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1990 190E 3.0L