EGR Problem (code 16), cause of running rich?

[EddieWelsh]

ive had a CEL for a while now and ive got code 16, and code 9.

My car is running rich, (dark smoke from exhaust, bad gas mileage, exhaust smells strongly of fuel)
would the EGR have anything to do with this, if so where is it located and what might i be able to do to fix it, would a tune-up help?
Ive tried searching but all of the replies are from 2002 and the answers all say to refer to the online shop manual, which we all know is no longer around. Any help would be appreciated.

1993 MX-3 GS SE V6.

[IanL]

Code 9 is engine coolant temperature sensor, and that is, in my view, a more likely cause of your mixture problem.

[PATDIESEL]

A tune-up would defenately help. If you are running rich then you will burn up the spark plugs much faster than usual.

[EddieWelsh]

ok ill check that out, the car itself isnt overheating or anything like that. it runs fine, but when this car was my sisters, the water pump went out and the car slightly overheated. Thanks.

[papa roached]

the engine coolant temp sensor is what ya need

[Gro Harlem]

I got that code when it turned out being my Oxygen sensor. I replaced both and my car ran great and got 6mpg better than it did before (this is a klze btw)