hey i have a evo 1 its blowing big cloud of black smoke when boosting its running standard everything ive just replaced the o2 sensor because that was faulty but i replaced it with a cheap universal one im wondering if the universal o2 sensor is the problem

any help would be much apreciated.
Tim

 

youre runnin too rich, the problem might be your 02 sensor.

 

is there any other sensors that control how rich or lean it runs or is it just the o2 sensor