They can point to what ever we want to see.
Depending on the code produced, it might only say the injector is not working as it should. That might be a for a variety of reasons, not because the injector is faulty. It should be tested. There are a set of conditions that occur for the code to be set and all those should be explored and tested before swapping out a part. In which case you will replace the part and get the problem reoccur.
Stability Control will generally only be disabled by the ECM which there is not enough voltage to supply more critical circuits.