Pre-'85 22RE. Very interesting. I never knew of such a thing.
I remember reading long ago that Toyota had "analog" EFI computers on Celica's... that also used the 22R around the same era. I wonder if the ECU part number crosses over to the Celica.
On a side note, that old reading also claimed the old analog ECU's were less accurate than the fully digital ones, but easier to modify. I can imagine: if biasing is based on analog components, it could be easy to modify... not that you'd want to. I'd guess that any changes would be real science experiment.
I remember reading long ago that Toyota had "analog" EFI computers on Celica's... that also used the 22R around the same era. I wonder if the ECU part number crosses over to the Celica.
On a side note, that old reading also claimed the old analog ECU's were less accurate than the fully digital ones, but easier to modify. I can imagine: if biasing is based on analog components, it could be easy to modify... not that you'd want to. I'd guess that any changes would be real science experiment.