Hi,I recently had a standard replacement ecu fitted to my 2002 WRX.The ecu came with a key chip which I fitted to my key and this works fine.I've been to 2 Subaru garages to get the spare key coded without success.Culverwells were very helpfull,but didn't really know why the key wouldn't code.Their programme showed " Key program NG,key not registered.Both garages suggested buying a new key with a blank chip at a cost of appox £150,but wouldn't guarantee this would work.I'd still have to pay the £150.Anyone any ideas,Thanks Terry