There is no machine that is magically going to tell you wish sensor is bad. If no codes are present, or if you have codes and you suspect a faulty sensor or actuator, perform the following. Obtain specifications from a reliable source. Hook up the Maxisys and monitor sensor values (PIDS). Record your sensor reading at idle, and again at various RPM ranges. Compare the values against specifications. 

Hey you Gays,  Any others out there besides Smog Tech that's  seen a Pride Parade or two can help this guy fix codes , so car will be able to pass with  flying rainbow colors? :-) Gotta Love Goggle Translator.