most cars now have a fuel cut of conected through the air bag ecu which cant be reset with diagnostic equiptment, dealers just want yoy to replace it.
i found a guy in morcame who can reprogram air bag ecu's he is very helpfull and the last one he done for me was a renault modus which was back in 2 days.
cant list email address here but if you come back to check this let me know your interested
d
January 2010