I've got a 1.1l HCS mk3 fez which has an idle problem. It's idleing fine one minute and with out warning the idle drops until It's almost staling (It never actualy stals) and the battery warning flickers. It revs fine when this happens but the only way to fix it is to turn the engine off, start it up again straight away and it idle's fine again until abought half an hour later when it does it again. The cars been stood for a year and this didn't happen before I stored it, help.