I met with corvettecrazy today, he brought his cool gadget, the Autotap, I told him how i suspected my mpg was suffering sometimes and how my exhaust smells a bit too rich. So he ran autotap. Now the air/fuel ratio should be about 14.2-14.7. I got 15.1-15.4 varies but doesn't really go below 15.1. Now I suspect that'* is a bit too rich. Does that mean i need new o2 sensors? Or what?
I also told him about my theory that my fuel pump was failing (hesistating) so we tried to find the pump on autotap, but to no avail, so i need to do a fuel pressure test. But we found a fuel tank pressure, it was negative .1 to negative .2. Any one know what they mean?
Corvettecrazy will post some more numbers after he gets home. He has the program.
So come back after Corvettecrazy post the numbers then we'll all put our huge heads together.