I'm only getting about 17 mpg right now (80 hwy 20 city) and it's seems like it's been slowly decreasing. I haven't run a maf screen for about 1 year and I can't find it to put it back in to see if it helps. The o2's have about 45k on them and about 5k ago I torched them and it seem to run a little bit better for a short time. I have the fpr set at 36psi and timing at 10* if I set the fpr any lower it starts to ping but it seems to run really rich at idle. In the past year I have replaced all the basic sensors and I just cleaned the maf. Do you think getting a maf screen would help or do you think it's the o2's or both.
