It would be best to have a repair shop diagnosis it for you. A code 14 is the Enable Relay circuit open. It could be a bad ground, a bad Enable Relay or the Abs hydraulic unit is defective.jd
Paint code04 white Monte Carlo 40wa8554
0 in the 9th dig
The Paint code is on the sticker, inside the trunk, under the lid
The 8th digit in the VIN is the engine code. For a Monte SS, it should be a "G" for the L69 305. I don't believe that engine was available in any other model of Monte Carlo.
Trouble code P0446 means: EVAP Vent System Performance
This should have set a code; I would have the codes pulled from your computer to find out the problem. Autozone used to do the free.
catalyst efficiency below threshold (bank 1)
The check engine light means that the computer has a problem code that you need to read. Use a diagnostic code reader for your vehicle. Your Chevrolet should be OBD2 compliant, meaning that you need an OBD2 code scanner.
P0420 is not a part. its a cat efficiency bank 1 code
Trouble code P0440 means: Evaporative Emission (EVAP) System - Continuous Purge Flow
on driver side when you open door there is a manufactor lable with that code including tire size
you have to hook up a special reader to your computer to find out the code.