i wired up the gauge exactly how it says. feeding off the brown wire for my gauge.
I did the calibration and all the lights blinked the way they should. I then start the car and the gauge sits at 22.0 untill the led stops flashing then jumps to 18.5-18.4 and sits there for a good minute or 2. then jumps back to 21.9-22.0 and stays there never changing.
Im trying to figure out why its not reading correctly. the brown gauge was supposed to be the correct voltage readings. and my laptop has no serial out. is there anything anyone can offer?

 

so i did some thinking. when my a/f sits at 18.5 no throttle blips or anything changes the a/f it is stuck on that. so i decided id try the yellow wire as my gauges source.
it read very low as i expected. 8.8ish but when i blipped the throttle it followed. and reacted. does someone think there is something wrong with the brown wire inside the harness? since its not even reacted normally. and can i just connect the lc-1 to the ecu and set the parameters for the yellow wire to be the normal 0-5v wideband source.?