is there power to the chip at all times?

[garyfink]

I have the plastic cover notched out so I can plug and unplug my chip without taking pcm out I was just wondering if there is power to the chip when the ignition switch is off? or do I have to disconect the batteries each time?

[ToMang07]

As long as the keys are NOT in the ignition, it is off.

[Hoverp]

Best not to pull it in and out though. Makes the contacts wear.