[Vert04GT]

I have an 04 gt running rich and I only get about 17mpg. I've had the car about 6months, it only has 60,xxx miles on it, but its running extremely rich. I think it did sit for a few months before I bought it. I've done all I know to do, I put a CAI on it because the factory filter smelled like gas and the inside of the stock air box had moisture in it that smelled like gas. I cleaned the mass air meter with alcohol, changed plugs, i've added a full exhaust setup, and changed the o2 sensors.


Im all out things to change so all input would be greatly appreciated

[racin366]

You may have damaged the maf, they don't like to be cleaned, etc., but first I would pull the plugs and see what they look like and look around for any possible vacuum leaks. Are there any issues with the way it drives? What brand did you get for the O2 sensors? Oem ford work the best, the rest can be rather short-lived, but if they are new they shouldn't be the problem.

[Vert04GT]

Thanks. I couldnt find any vacuum leaks. I dont remember what brand the 02 sensors are but they are what the factory suggested, they are only about 3 weeks old. However I am kind of leaning towards the MAF because the back prongs inside it you cant get to so I couldnt clean them, they were really black and dirty. But as far as the way it drives its great.