So I finally did the ghetto code reader and this is what I got. Codes 32 a few times and codes 43 a few times.

Code 32 is for the EGR valve correct? If the code pops up right away it means the temp sensor of the EGR valve may be shot, but what if it comes on after warming up? How can I test it w/o removing the whole plenum?
Someone mentioned a flathead screwdriver and seeing if it moves or something.
Also, could a bad EGR cause a fuel smell outside of the car, or would that be a gas cap

Code 43 is for the KNOCK sensor? Will water in the tank cause this? I filled the tank yesterday, put in fuel injector cleaner and a bottle of water remover.

Now when I paperclip the codes out, does it start with the newest code, or the oldest? If it's the newest, then it seems that it's the EGR now. But a couple night ago when the car was almost empty, I got a code and the car weakened. I parked it, started it back up, and code was gone and performance was back. That would lead me to believe it was a code 43.

I know I have alot of questions, but I need alot of answers before I start buying expensive replacement parts that aren't gonna do me a bit of good.

Thanks!

-Kevin