So, im still stumped why the car is running rough. Its had a cel since I bought it- and it never ran rough. But I checked it and its some code that references the egr system. So i pulled the intake manufold off, cleaned the inside of it, cleaned the throttle body.
I noticed some vacuum hoses that were cracked, so I replaced every single vaacum hose in the back/manifold area. Pressed on the egr and it moves fine, doesn't seem stuck. Car still runs rough. I hear a "hiss" noise near the throttle body are when the car is running, but I cant find any other leaks
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I unplugged the o2 and ran the car, it runs the same, I don't think it is the sensor.
Should I just replace the maf at this point? It's the only connector that still has that metal retaining ring on it- so I assume its pretty old lol.