PLEASE HELP!!! Ecu throwing 5 codes.

[2_slow_40]

Okay, as the title states, my ecu is throwing 5 different codes, each triggering my cel. Here's all the codes I'm getting:

12: Maf.
14: Vss.
32: Egr malfunction
33: Front o2 sensor
34: Detonation (knock) sensor

I have been searching and searching and searching, which is how I found out how to check the ecu for codes, and what code means what.
I have just bought a 92 240, but from the searching I've done, I'm thinking the motor is from a newer model. There is no swirl valve on it.

Anyways, I first checked the egr sytem out. I replaced all of the vacuum lines, and cleaned everything up. Now the egr valve is functioning, but I'm still getting code 32.

I replaced the o2 sensor, with a Bosch 12046. I'm still getting code 33.

The weird thing is, that since Ive replaced the o2 sensor, when I try to reset the ecu codes, and start the car, the cel blinks all of the codes, while I'm driving. Before, when checking the codes, I would start the car up, and I would have no cel until I turned it off, and restarted it. But now, none of the codes are resetting. When I turn the car off, and restart it, I get a solid cel. I don't know whats going on. As soon as I replaced the o2 sensor, this started happening. Does anyone know why it's doing this??? Any help getting all of these codes fixed would be greatly appreciated. I'm trying to pass smog, legally, but these codes, along with my SUPER HIGH Nox levels are stopping me. Please givee me any information you have on my current situation, I just want to drive my car. Thanks,

~Cody