emmision

  1. N

    help, o2 and cat monitors wont ready for emissions test, 2013 mustang gt

    o2 sensor and cat monitors wont ready themselves for emission test, had 91 tune from bama, flashed back to stock, have driven almost 1000 miles with no luck, have carb legal flowmaster shortys and mbrp catback exhasut on it, stock air intake (removed airaid cai for emission testing), no matter...
  2. grayvixen93

    Bad exhaust gasses / emission test failed

    Hi! This is my first post :) I have a 93 GT Vert. I did not pass the smog/emission test because of bad gases - lambda was 1.28 at 3000 rpm. I brought the car to a workshop in my town after I sealed some exhaust leaks. There was a big leak on the pipe that leads to the smog pump. I thought...