Tyrrell → Toleman
Stefan Johansson terminó P17 en el Campeonato del Mundo de 1984 con 3 puntos. En 6 carreras: 0 victorias, 0 podios y 0 pole positions — mejor resultado P4.
| Round | Race | Team | Grid | Finish | Points | Status |
|---|---|---|---|---|---|---|
| 10 | British Grand Prix | Tyrrell | 25 | P24 | Disqualified | |
| 11 | German Grand Prix | Tyrrell | 26 | P10 | Disqualified | |
| 13 | Dutch Grand Prix | Tyrrell | 25 | P15 | Disqualified | |
| 14 | Italian Grand Prix | Toleman | 17 | P4 | 3 | +2 Laps |
| 15 | European Grand Prix | Toleman | 26 |
| P21 |
| Overheating |
| 16 | Portuguese Grand Prix | Toleman | 10 | P11 | +1 Lap |