i have a 90 4.5 fleetwood fwd and it is running too rich. wont pass smog because of it. i have most injectors replaced couple of years ago. did a tune up o2 sensor changed. is there anything someone could recommend before i take this to a mechanic shop and blow 100's of dollars.
my car also qualified as a gross poluter. the numbers it failed was at like 600 but was suppose to be at 120 or under.