Firebhoy

Ah that makes sense. The original key was on the keyring too.

I'm not sure what you mean. I still have the original key which starts it with no problems but there's no buttons on it. It wasn't remote central locking. I got a generic central locking kit fitted and got the blade cut on the key. I wasn't sure if it would actually start it but it did. Just the light keeps flashing.

I only ever had one key. Just the normal one, not push button. I'm not sure what the key is made up of. Its internals are for the central locking system.

Sorry if this has been covered but I've not found anything covering my exact issue. I got a generic central locking kit fitted to my Fabia a while back and just got the key blade cut. It opens the doors manually but when I start the car the immobiliser key light flashes. The first time the engine cut out but when I tried again it kept running. It starts the car but the light keeps flashing. Any suggestions as to how I can rectify this?