Had the Clio out for the first time on Saturday for the first time since the middle of December as I was doing a good few bits to it over winter. Twice when I was out the engine management light flashed a few times then went out again. Over winter, I put a toyo manifold and new precat lambda sensor on. A new induction kit was also added to the car. There hasn't been new fuel in the car since October. Could any of the above cause this?