right im so fed up of this problem and im begining to feel like im been ripped of cause im female. the problem is as follows its a hyundai coupe 2001 1.6 been reving on its own when i stop at a junction or come to slow down and then some times it drops revs and then engine cuts out.been going on for nearly a year this problem is wen i take it to garage it dont do it really annoyingbeen told it could be idle valve several times or throttle both been cleaned out numerous times, and still problem persists. this has been going on for months so took it back todat they hooked in on a machine and they now saying its a engine management fault and its gonna cost £500 to replace does this sound right any advice please