Re: Need Help!
The standard time to rest the Keep Alive Memory on Ford genuine PCMs is between 2 and 15 minutes, depending on year, model, if it's imported, etc. In all my years working for them I've never heard such thing as disconnecting the battery positive terminal, only the negative. You can also instantly reset the KAM by using a command from WDS or IDS. The re-learn time for these PCMs is usually a full driving cycle, 10-15 minutes, unless it's equipped with EOBD II ( 06 model european cars, probably next model Falcon) in which case the driving cycle is more complex and it could take a couple of days to complete.
I don't know which book the "recalagrate" guy was reading. BA/BF Falcons re-learn procedure is something like this: start up & idle for 1 minute, turn a/c on & idle for one minute, put car in drive & again one minute, go for a drive and put the car through the whole rpm range, including a couple of seconds of full throttle. The rest of the settings, only when the car is at normal operating temperature will it start correcting the values of the "tables" with actual ones, but you won't be able to notice this, as this is a constant and in many cases adaptive procedure, meaning that this values will change according to the way you drive the car.