How do you get an M reg Calibra running or even bypass the immobilizer after replacing all the locks including the ignition barrel?

Answer 1

Do you have the original ignition key?? Tape the old ignition key to the cowling around the ignition, then put new key in the ignition and see if it will run. The reason for this is there is a transponder chip in the old key that needs to be picked up by the rim module around the ignition barrel. If it works, take keys apart and swap transponder chip . Hope this helps