I'm not sure what's going on with my gaby 2.8 a8 then as Im not seeing anything like what your getting in the s8's!! If I take note of the dash it says I'm getting between 10.1 and 11.6 around town and about 15-17 on a run at about 70-75? If i work it out properly im getting about 21.6-22mpg on a run! I've replaced maf sensor, all vacuum hoses, air filter, plugs. I did buy a second hand maf from Carl but he said it was all fine before I got it I have even cut out and run new wires to the maf?? I'm quickly running out of ideas and patience.
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