Anytime I have to do a long circular right turn to get onto a toll road or highway, it stalls. It doesn't fully stall or die, but it almost completely loses power for a couple seconds as you drift towards the toll road. It helps to rev the engine as it starts to stall, but it's not necessary. It only does this when turning right, and only when doing a circular turn onto a toll road or highway - sharp right turns work fine, roundabouts work fine, but doing a circular right turn onto a toll road will stall it every single time.