A friend of mine has a ´96 Cavalier 2.2L and it´s not acting too friendly. I don´t feel like typing too much here tonight, as I am quite tired, but just want to know something. Is there a ~simple~ way to check if the injectors are working at their full capacity? I´m going to be doing a bit of work on it for them, but only after I figure out the extent of damage caused by not having a tune-up in over three years with only one oil change and effectively no air filter.