I have recently had a new engine fitted on my Fiesta. It was leaking compression, and rather than take the head off I managed to get a replacement engine for a good price with fitting. When I collected it from the garage on Tuesday, it took a few times to get the car to start, as the immobilizer light kept flashing. I made sure to turn the car off and on again a few times to make sure that it was working fine. Today however, the same issue again. The car will not start and I can hear a clicking sound coming from around the glove compartment. I have monitored the flashes and it seems that the code is 11, I could be wrong though. If you guys have any suggestions that would be fantastic - I thought these cars were really reliable but have had to pay out crap loads since I bought it. Apologies if this is in the wrong place. I should also add it sometimes flashes EAC failure as well.