Having some trouble with coding a key, hope someone can tell me where I am going wrong!! I bought a blank key from ebay with the transponder chip, got the key cut and followed the coding instructions... The central locking now works fine but the key will not start the car, it will only start a second or so and then switch off. I also have a non-remote key which does start the car ok, but I would like to have them both working, I am thinking the transponder chip in the "new ebay key" must be fauty as I can't see what else it could be?? Any help most appreciated, Thx Lee