P0456 Error Code: Evaporative Emissions System – Small Leak Detected
Wondering why the check engine light is on and what is has to do with code P0456? Your vehicle has a complex evaporative emissions system …
OBD-II Error Code
P0420 Error Code: Catalyst System Efficiency Below Threshold
The P0420 code signals a low catalyst system efficiency. This code suggests that the oxygen levels are below the desired threshold (Bank 1), which most …