This is back in to be fixed. I have spent some more time on this with the scope and can't fault anything besides the primary. The timing changes but it happens after the misfire and the inputs stay stable. Has to be an ECU fault, but it has had a used ecu since it was last here. Either two faulty ecu's or a faulty diagnosis.

I need to go through this pin by pin in case there is something odd happening external to the ecu. The only problem I have is that I am working with incomplete data. My oldest Rave is not old enough to cover this. Rave diagrams are listed by chassis number, this one is 213890 and its the one with just one coil/king lead rather than a coil pack with 4 leads. Anyone have the correct diags?