155 Immobiliser Probs
I am fairly new to Alfas, having bought a 155 2.0 16V in November off a friend at work.
During the recent cold snap I have had trouble starting the car, due to having an old battery, so I have had to jump start the car a couple of times, with no problems. I went out and bought a shiny new battery and fitted it yesterday, and then found that though the engine turned over, it would not fire due to the fact that the immobiliser code has reset itself, despite the fact that the the car was disconnected from a battery for a maximum of about a minute. I don't have the emergency code (it's a 1996 car, I think they stopped giving them out in 1995) but I do have the brown master key. I tried using that, but the actual pattern the key is cut to is different between the master key and the normal red key! Is this normal? Seems a bit odd to me. So, the car is stuck at home, but I brought the keys with me to work and will take them to local Alfa specialist (Black and White) to see what they can do - do they need the car to reprogram the keys, or just the master key?
I tried doing the thing where you turn the ignition to MAR for 30 secs, then turn it off and then touch the battery wires together, but it didn't work, though I only touched them together for a second or so.
I am a bit worried about having to do a full lock/key/ECU etc. replacement, so any opinions and info would be gratefully received.