I bought a chipped p28 ecu for my car, and there is a weird shunt that i can't find any info about on it, can someone please explain what it can be? It's that little red wire i never saw this on any other thread

Its the little red wire

 

My guess is… that’s probably how previous owner/tech repair the jumper.
your pic is very blurry but there seems to be a 0 ohm resistor/jumper right above that RM chip on your board according to this documentation. https://xenocrontuningsolutions.freshdesk.com/support/solutions/articles/1000257543-11f0-board-vtec-conversion-kit-installation-instructions

most likely, some trace of the board burnt off and jumped using a wire.

EDIT: wrong link

 

Thanks alot for the info, will it help if i post a better pic? I will post a new one tomorrow

 

my bad. i posted the wrong link.

https://xenocrontuningsolutions.fres...n-instructions