If you have an Advance Auto Parts near you. Free of charge they will plug in a OBD-II (On Board Diagnostics) scanner into a special receptacle at the bottom of your dash.
The OBD-II scanner looks like this:
The scanner is displaying code P0442.
The small text underneath displays: Evaporative Emission Control System Leak Detected (small leak).
The scanner will "hopefully" display a 4 digit code beginning with a "P" on your vehicle
All you will have to do is repair that specific problem referring to the information displayed on the scanner.
If the "clowns" at the shop did not fix the problem, you should not have been charged. All they needed to do is run an OBD-II diagnostic scan. They "have" or "should have" something with more complex diagnostic capabilities than the one pictured.
Get back to me if you need more help or have more questions.
Wednesday, January 6th, 2021 AT 2:12 PM