Bomber, what are you trying to do? Fix the emissions equipment on your '78 2F, or fix the emissions equipment on your '79 2F? Were you hoping that the '79 stuff would migrate over to the '78?
You probably need to bust out the emissions schematics from the Haynes manual and start comparing. You can use SOR's website to compare part year applicability.
Rising Sun Bio
2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering,
no more Sanden OBA
1FZ-FE factory lockers +
Safari intercooled turbo, CDL switch, cup holder, Metric TLC leather, heated seats, JDM switches, PUMA OBA.
Warn M12000 waiting for a bumper.
Limited TRD 2UZ-FE SOLD