For some reason my truck has been running rich lately. (you can smell it.. plus if i rev it up in the garage it blows raw fuel all over the white wall... lol. No codes. I do have a glass pack and no cat... But again no CEL and i did check for codes. Truck does seem a bit boggy and i guess this would explain crappy fuel mpg(9mpg). Doesn't burn any oil and im running synthetic... Any idea's?

 

sounds like its just running rich as you said,,,,, you check engine bulb may be out,,, may want to put a nice scan tool and see what the o2 readings are

 

Check engine light isn't bburnt out and i will have to see if my tool will read the o2 readings...

 

Any updates here?