Hi. I hope someone can give me some advice? My 2003 with low mileage has a problem The engine accelerates smoothly and pulls well on pull away from stand still. But when the revs are below 2000 rpm and it takes slight strain before the gearbox kicks down, it's jerky. The engine light is off. I had the lambda sensor replaced and also all the coil packs. The problem persists.. Any ideas? Thanks guys