Can you change the ignition immobilizer reseaver and still use the same key?

Yes, you can change the ignition immobilizer receiver and still use the same key, but the new receiver must be programmed to recognize the existing key. The key typically contains a transponder chip that communicates with the immobilizer system. If the new receiver is not programmed correctly, the vehicle may not start. It's advisable to consult a professional locksmith or dealership for proper installation and programming.