Help a brother out? Limp no CEL

Hi folks,
Just joined, I'm hoping someone can give me some advice on an issue I'm having with my 2000 TL. A few times a week it will loose power not accelerate (I'm thinking this is limp mode) but there is no CEL. I've tried putting the trans into neutral when it happens, and there is no change, rpms still remain the same. Then the car will come out of it and drive normally. I've replaced upstream O2, plugs, and checked coil packs (all functioning). Oil is fresh, ATF (DW-1) is fresh. Anyone have any thoughts? Any helpful advice would be greatly appreciated. The only thing that i have spotted that is out of the ordinary is a random wire running to one of the coil packs on the front of the engine. (pictures below) I know the coil pack is working but this wire looks like something added from a previous owner (maybe) I have no idea if this could be contributing to the issue, but I have no idea why this wire would be running from a coil and into the firewall (remote start?)

I've been searching the forums like mad, but only find postings about limp mode WITH a CEL and thus checking codes.

Anyways sorry for the novel. Any guidance or advice would be awesome.

Thanks.