Originally Posted by KelloggKid
I've already changed my filter (without disconnecting the battery) but am about to put in a new battery in. The idea of keeping power to the car while I change out the batter is intriguing. What are you referring to when you say a $5 power adapter?
I agree with Doc... just change the battery and don't worry about it. Other than the trouble codes, I don't think that Crossfire has any volatile memory.
However, if you have several vehicles it might be handy to have one of these simple devices on hand.
http://www.amazon.com/Computer-Memor.../dp/B000J4HHVM
They maintain your engine trouble codes(if any), radio settings, things like that.
I've read that it's a good idea to keep power to the ECU but since it is flashed to memory, I don't really think it needs power to have it maintained. Radio settings, seat settings, mirror settings, Climate Control settings in my Avalanche though ... you either use one of these or re-programme it every time you disconnect the battery. For $5 it is a good idea if you have vehicles other than a Crossfire.
Perhaps a forum member can help determine if there is any volatile memory on the Crossfire that would benefit from one of these.