parked up the clio for about a week and a half,went back to it yesterday to start it,when i turned on the ignition the fuel pump didnt energise.checked that there was power going to it and there is,it seems obvious that the pump must be f**ked,but how could this have happened when the car wasnt even in use?!any suggestions or ideas as to what else on the off chance might be wrong before i shell out for a new pump?