afr ratio gauge install ??

basically got given an afr gauge, just a cheap 1 not wideband and yes i know there shit. i wired it up, and i got told to cut the lambda sensor and connect the signal wire, which i did, but the gauge doesnt read any signal from the lambda.

do i need to take the signal wire for the gauge from somewhere else?, or do these just not work on a swift?

it will work but is fairly pointless as its narrowband it won't give a definate reading unless on full power and will just bounce endlessly between lean and rich and just end up driving you mad

it doesnt work off the lambda sensor full stop, i just want to get the needle moving as its more annoying sat there doing nothing lol