News from Eurosport Pacific GP wrapup 20/4/94 (Dutch Commentator):

Larini will be driving at least as far as Monaco, due to the injury of
Alesi;

Ferrari was found to have what they call a rev-limiter which FISA
threatened to classify as traction control; this would cause Ferrari
to be banned from F1 for one year; [I see an article on this has been
posted, but i didn't know the implications]

Berger has signed for one more year;

further stress between Williams and Renault, as Renault wants to give
the engine to other teams, while Williams absolutely doesn't want this;

JJ Lehto had been testing at Silverstone, but unfortunately still
experienced pain in his neck.