trying to pass smog help please!

[lrgkevin]

ka24e stock motor: Ok so i've failed smog twice now and now i'm a little confused. My car is running super rich and I don't know why. My first thought was that it could be the o2 sensor. I changed it about a month ago because the wire was actually fried in half so the o2 sensor was not connected. Changed that and added a phat speaker wire to connect the o2 sensor to the existing wire. I thought that would be the problem but when testing the codes on the ecu it's only giving me a vss and egr code. I know the vss doesn't work cause the speedo doesn't work. I changed the egr system and it still throws that code. My friend was telling me about some safty mode that the car could be running in causing the car to run an open loop or somthing like that I didn't follow the reasoning totally so i'm not sure on that but I didn't think that the egr and vss would make the car run rich so if you guys could let me know why i'm so stupid that would be great.


Any help will be appriciated.