Ap lose power? Switch tune?

[frankiefiesta]

AP doesn't charge. It gets power through the obd port. Maybe you weren't plugged in fully?

 

[COBB Tuning1]

Like others noted, the AP does not need to be charged, it draws power from the OBD port on your car. Also, the car/ECU can not "lose" the tune. However, boost can fluctuate depending on conditions (example: hot vs cold out). I'd recommend monitoring OAR to make sure it is at -1.00 and also make sure you don't have a bad tank of gas.

Ian

 

[Kiotofl]

Whoops, wrong thread.

 

[Zissou]

So what does it mean when your ap3 goes black when your car is on? Sorry for the thread jack.

He means it shut off. Because the AP doesn't have a battery. It's powered by the car via the OBDII port. The USB is for connecting to a computer for updates among other things.