No More Power Mode

[Weebitob]

My latest test confirmed my fears that for a couple of weeks my power mode has vanished, or little green led lighted power icon has now faded from the rest of my dash.

It also have some suspitions that this is also not mechanically working because even though I felt some acceleration, I didn't feel that usual 25-40mph jolt or even as much of an overal jolt I use to get when when the "Power Mode" light turned on. It also could be me being a bit paranoid.

I know there have been some past posts on this subject but I just feel like I want to bring it up a new, so there are less pages to shuffle through and there may even be some new findings.

So do you think it is a TCU or mechanical problem?