Piercarlo Ghinzani
Osella topped a pre-qualifying session for the first time this season as Nicola Larini was fastest by four tenths of a second, ahead of Onyx driver JJ Lehto. Larini's team-mate Piercarlo Ghinzani was third, only the second time in 1989 he had progressed to the main qualifying sessions. The fourth pre-qualifier was the Larrousse-Lola of Philippe Alliot.