The electromagnet that makes up the igniter, if it breaks through thermal cycling, will create a bunch of magnetic fields that create the misfire. This alone is diagnostic. When I worked on the Honda cars, this was a common thing to replace and how we found the issue.

Last edited by rxinhed; 02/28/21 02:52 AM.
1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya