In simple way the immobilizer is the safety system introduced in year 1994 aims to prevent undesirable start of the car. However, its effectiveness is very often questioned due to the problems that arises after lost of keys, program decoding, damage of software etc. In fact, we are able to overcome that problems by removal the immo protection at all. The operation bases on the software changes or adaptation of the hardware emulator that imitates the missing part of the system e.g. key.