4A-GE MK1 Engine 86 Egr issues

4A-GE MK1 Engine, rich, normal, failed, running, star, vacuum, adjusted, decarb, replaced, irrelevant, testing, sensor, oxygen, change, blocked, confused, functiong, lock15, receives, applied, stumbles, load, things, tvis, engine, smog, barely, extremely, forgot, owner, previous, pretense, year, history, issues, bought, february, back, mention, gross, shop, pretested, time, station, pass, fixed, polluted, issue, station.right

First some history. Bought the Mr2 back in February of this year under the pretense that it barely failed smog for running rich. Well it was running extremely rich and the previous owner forgot to mention it gross polluted so after I fixed the rich issue it had to go to a star station.right when it was about to pass at my normal shop (pretested ok). Took it to the star station and it failed this time for nox. So now here I am. Things I