have you checked & adjusted timing?
Perhaps something from this may help your situation as well: FJ62 engine miss at idle (3fe) where to start? - https://forum.ih8mud.com/threads/fj62-engine-miss-at-idle-3fe-where-to-start.983467/post-12047670
Perhaps something from this may help your situation as well: FJ62 engine miss at idle (3fe) where to start? - https://forum.ih8mud.com/threads/fj62-engine-miss-at-idle-3fe-where-to-start.983467/post-12047670