Helpful Automotive Resources
September 25, 2020 Evaporative Emission Control (EVAP) System 101: The BasicsBut that doesn’t mean you should ignore a problem with the EVAP system; on the contrary, an EVAP failure is almost guaranteed to prevent your car from passing a state emissions test. What’s more, a problem in the system increases the harmful emissions coming from your vehicle.
September 15, 2020 P0456 Code: Evaporative Emission System Small Leak DetectedDuring a typical “small leak” test, the PCM first opens the purge valve to create a vacuum in the system. The device then seals the EVAP system by closing both the purge valve and the vent valve.
Your PCM may log the code P0456 if it determines that there’s a minor July 02, 2020 P0452 Code: Evaporative Control System Pressure Sensor Low InputYour vehicle’s EVAP system captures raw fuel that is evaporated from your fuel tank and other components of the fuel storage system, such as the filler neck and fuel cap. After capturing raw fuel vapors, the EVAP system sends these vapors back to the combustion process.