By this stage, Footwork had already given up hope in the Porsche engine, and had decided to go back to the Ford Cosworth DFR V8 that had been used in 1989 and 1990. However, the team had to make do with the 3512 for the North American rounds in Canada and Mexico, for which Stefan Johansson took the place of Caffi, who had sustained injuries in a road accident. Both drivers managed to qualify at Montreal, Alboreto 21st and Johansson 25th, but retired with throttle and engine problems. Then in Mexico, after four of the team's seven engines for the weekend had failed on the Friday, Johansson failed to qualify, while Alboreto qualified 26th and last, only for his 3512 to fail again before half-distance.