yes another one of these threads but i am so pissed that im only getting 8 mpg because it is killing me. So far i have done a tune up including spark plugs, spark plug wires, cap, rotor, air filter, fuel filter, and i got one of those code readers from walmart. No codes have come up but im not exactly sure if i used it correctly. There is a black 6 pin plug and then the 1 pin white/grey plug. do i just use the 6 pin or the 6 pin and white plug? Someone told me the pvc valve and 02 sensors. I have bought o2 sensors but they are not in yet. I also was told to disconnect the o2 sensors and that might help if that is the problem. It seams that im still getting the same mpg even with them disconnected. The car runs great and has 80,00 miles on it. Im not even driving hard just with a lil here and there. What else should i look into?