Scotty: My favorite 95 Toyota Tercel is not happy and I ain't either. HELP! I changed the sensor and cat (code 0401 and 0402( and fuel pump because of age, codes, and how my gas gauge would just drop and drove crappy. We then cleaned the throttle body, and now it does not vibrate as much, but now sounds like a vacuum and eats gas like you won't believe! :''( I went from 40 mpg to half a tank 4- mptank. Please tell me it's an easy fix. I love that dang car <3 . . Thank you!