EVAP Vent Valve
Lets the charcoal canister breathe in normal running and closes to seal the system so the module can run a leak test. Mounted near the canister underneath the vehicle, where road spray, salt and dirt reach both the valve and its connector — on salted roads this is among the most common evaporative faults, and the connector is worth inspecting before the valve is condemned.
Also known as: vent valve, vent solenoid, canister vent valve, cvs, canister close valve
Referenced by 43 codes
Codes involving this component (43)
- P2400 Evaporative Emission System Leak Detection Pump Control Circuit Open Moderate
- P2404 Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance Moderate
- P2418 Evaporative Emission System Switching Valve Control Circuit Open Moderate
- P2419 Evaporative Emission System Switching Valve Control Circuit Low Moderate
- P2420 Evaporative Emission System Switching Valve Control Circuit High Moderate
- P2421 Evaporative Emission System Vent Valve Stuck Open Moderate
- P2422 Evaporative Emission System Vent Valve Stuck Closed Moderate
- P2450 Evaporative Emission System Switching Valve Performance/Stuck Open Moderate
- P2451 Evaporative Emission System Switching Valve Stuck Closed Moderate
- P043E Evaporative Emission System Leak Detection Reference Orifice Low Flow Low
- P0440 Evaporative Emission System Malfunction Low
- P0441 Evaporative Emission System Incorrect Purge Flow Low
- P0442 Evaporative Emission System Leak Detected — Small Leak Low
- P0446 Evaporative Emission System Vent Control Circuit Low
- P0447 Evaporative Emission System Vent Control Circuit Open Low
- P0448 Evaporative Emission System Vent Control Circuit Shorted Low
- P0449 Evaporative Emission System Vent Valve/Solenoid Circuit Low
- P0453 Evaporative Emission System Pressure Sensor/Switch A Circuit High Low
- P0455 Evaporative Emission System Leak Detected — Large Leak Low
- P0498 Evaporative Emission System Vent Valve Control Circuit Low Low
- P0499 Evaporative Emission System Vent Valve Control Circuit High Low
- P04EA Evaporative Emission System Small Leak Detected — Fuel Tank Side
- P04EB Evaporative Emission System Small Leak Detected — Fresh Air Side
- P04ED Evaporative Emission System Large Leak Detected — Fresh Air Side
- P04EF Evaporative Emission System Very Small Leak Detected — Fresh Air Side
Other components in Exhaust and Emissions
- Oxygen Sensor 326
- EGR Valve 150
- Catalytic Converter 142
- NOx Sensor 118
- Reductant Injector 107
- Exhaust Gas Temperature Sensor 95
- Reductant Tank 95
- Diesel Particulate Filter 76
- SCR Catalyst 65
- EGR Cooler 62
- Exhaust Gas Differential Pressure Sensor 58
- Fuel Tank Pressure Sensor 58
- Exhaust Pressure Control Valve 56
- Reductant Heater 55
- Reductant Pump 51
- Exhaust Aftertreatment Fuel Injector 42
- Charcoal Canister 33
- EGR Position Sensor 32
- Secondary Air Injection Pump 32
- Reductant Temperature Sensor 29
- EVAP Leak Detection Pump 29
- EVAP Purge Valve 27
- Particulate Matter Sensor 24
- Reductant Control Module 24
- Reductant Level Sensor 23
- Secondary Air Switching Valve 22
- EGR Temperature Sensor 21
- Secondary Air Check Valve 21
- Catalyst Heater 20
- Catalyst Temperature Sensor 20
- Fuel Filler Cap 18
- EGR Cooler Bypass Valve 16
- Reductant Quality Sensor 16
- Exhaust Back Pressure Sensor 15
- Purge Flow Sensor 13
- Direct Ozone Reduction Catalyst 13
- EGR Vacuum Solenoid 9
- Fuel Vapour Temperature Sensor 5
- Fuel Additive Control Module 4
- Fuel Additive Tank 4
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