What is the EVAP system in a car?
What is the EVAP system in a car? The EVAP system is a closed system that captures fuel tank vapors and prevents them from escaping into the atmosphere. What is the trouble code for the EVAP system? Trouble Code: P0456 Evaporative Emissions System – Small Leak Detected. The EVAP system is a closed system that captures fuel tank vapors and prevents them from escaping into the atmosphere. What happens to the evaporative emission control system? When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis. I've...