I have a 2002, 1600 petrol model this is a automatic when i go down a steep hill i take my foot off accelerator it then jerks, like it is not getting fuel and e w light comes on. This ewl stops on for a day then goes off. I have had it checked out at a hyundi garage at a cost of £76 a time and they cannot find anything wrong. Fed up after 3 goes at this.