So my car came and it has a greddy emanage and a blitz access ECU among other upgrades. I accidentally left my headlights on and it killed the battery. It was previously tuned before it was shipped to me. Is the tuning already written as hard data or is it wiped out if it loses power etc. Haha, yeah I'm probably using incorrect terms and everything, but I'm just trying to figure out if there is anything I need to take care of after I jumped the car.

 

It should be all stored on the internal memory of the Emanage, which should have its own battery back up if its like any other tuning Ecu i've seen. Only way to know is crank it up and see if it still has all its settings though. I've used the AFC, AFR, MAP ECU, and a few others and they all remember their settings even after being disconnected so I would assume this one is the same way.

 

no there isn't any retuning needed it is stored in the ecu's memory which will not erase when there is no power going to it so jumping it isn't going to damage it nor will draining the battery.... however if you use the jumpers backwards then you'll fry it