So I am a girl with a problem. Bought a sweet car, black 2002 toyota celica gt with the vader kit on it. It's a manual and has a real smooth ride to it. My only issue is the air flow converter thing on the inside of the car. Evidentally I bought a car that was set up to race and being the girl that I am must have some how moved the button around on it and changed the settings. Now my car runs so lean that my check engine light won't go off and it keeps telling me to replace the MAF and the O2 sensor. I have replaced both and nothing has changed. I figure it has something to do with those settings and was wondering if anyone out there can tell me what things should be set on? My dad watched a youtube video earlier and at least got to the part where we can make the fuel part more rich but I have no clue about the throttle etc. My exhaust beats so hard now that it sounds like a small woodpecker is pecking on the back of my car when it's idle at stop lights. Please help a girl out!!