disconnect air flow sensor on throttle body (JUST air flow sensor and NOT the other sensors on throttle body too or your car wont run!)
if it runs ok then, its the throttle body.
if it runs same as before, reconnect it, then unplug o2 sensor on manifold, and if it runs better then thats whats broke, if it doesnt then thats fine.
so thats how i tested my o2/maf sensor. i dont know and wouldnt like to say what other sensors this method of testing works with :/
