I had to change my barrel because the old key i was using was chipped and breaking (So didnt want it to snap and i would be stuck). I eventually got the new one in and now my car won't start? Does anyone know of anything like this? The Key is NOT an Electric one. I have looked it up a little and all i can find is something about the immobiliser I dont understand how i can get the car working again, i am currently trying disconnecting the battery for the night but i don't know what else to do????? CAN SOMEONE HELP!!!!!!