Engine Engine Running Issues - P0172

I own a 97 3.4l tacoma with an aftermarket TRD supercharger with the 7th injector kit and AEM gauge reading the fuel consumption. I have been having some issues with it running since I had to tear into it and replace the knock sensors and wiring harness. Before tearing it down the truck ran great and I had no issues with it. While in there, I replaced plug wires, fuel injector on cylinder one, new temp sensor (I broke the clip off the original one), all new gaskets (throttle body, plenum, intake), new first O2 sensor. I cleaned the MAF sensor as well.

After putting it back together the timing had jumped and was running rough, took it into a shop and had the timing adjusted, a new belt and tensioner put on it as well as a new crankshaft pulley. Afterwards it ran better but still not right. I have had the P0172 (rich bank 1) come up a few times and my fuel consumption has dropped from 17 to 13mpg. I am going to add a couple videos showing the gauge reading while driving and while idling. Originally my gauge would read between in the 14's and not jump around much but not at idle it will drop down and go up anywhere from 9-18. Under power it will read normal but when I left off it will jump to 18 and I can feel the engine die out, this also will randomly happen while driving at a consistent speed. The issue seems to be worse in the cold and the severity jumps around and I cannot pinpoint the issue.

If anyone has any idea what I should look into I would really appreciate it. I am at my wits end, and have already dumped a bunch of time and money into this and there aren't any mechanics that will dig into this age truck especially with the aftermarket supercharger on it. Like I said, before tearing it down to replace the knock sensors it ran like a dream.