My car is getting some pretty bad gas mileage here lately. It was doing great, really great there for a little while. The all of a sudden it drops like crazy (getting around 10 mpg from over 25 mpg). I went and had the codes checked and it's the EGR valve number 3 that goes off. So I got a used one (new one was 185) and it gives me the same code. Since it's giving me all of this trouble I was reading about it and it seems like I might be able to take it off without messing up the engine. I've already got the cat off and I'll get my sticker anyway, so can I take this off (or disable it) without engine trouble?

 

yes, get a block off kit and block off the EGR ports.

Your computer will probably set a trouble cide for the egr, but it might not since yours is OBDI. IF it does, you hav eto get it programmed out.

I have this setup on mine, EGR blocked off and removed, and codes programmed out.

 

its probably the ports in the intake are pluged with carbon

 

What could I do to clean out the carbon? I've heard of seafoam but where do I put it?

 

Yes you will get the code with OBD1.