How to diagnostic problems in 1995 Mazda Millenia Supercharged on 1995 Mazda Millenia

How to dignostic with scanner?
Where to connect the scanner?

Asked by for the 1995 Mazda Millenia
Frank, mechanics get years of education and experience to be able to diagnose these types of problems. If you really want to do this yourself, get a repair manual, there are some good online sources ( and get a scanner. Read the codes and then do your homework on what can and cannot cause the codes to be set. We have some great articles in our Encyclopedia about common fault codes:
This is one of the most difficult types of diagnosis on your car, so be prepared and do your homework. Post the codes here if you need some guidance. Good Luck!