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P2422 Evaporative Emission System Vent Valve Stuck Closed
AutoHex Online Help: Hyundai GENESIS(BH) 2012
Component Location
General Description
The evaporative emission control system prevents hydrocarbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The ECM controls the Purge Control Solenoid Valve (PCSV) to purge any collected vapors from the canister back to the engine for combustion. This valve is actuated by the purge control signal from the ECM and controls fuel vapor flow from the canister to the intake manifold.
DTC Description
Checking output signals from fuel tank pressure sensor at purging, if fuel tank's vacuum is higher than prescribed threshold, ECM sets P2422.
DTC Detecting Condition
Item | Detecting Condition | Possible cause |
DTC Strategy | Monitor the fuel tank’s vacuum
| Faulty Canister Close Valve Clogging of canister air filter |
Enable condition | 10 V < Battery voltage < 16 V
Barometric pressure > 72 kPa (0.72 bar)
Engine coolant temperature at startup - Intake air temperature at startup < 6.7°C(12 °F)
Engine coolant temperature at startup: 4.5 ~ 35°C(40 ~ 95 °F)
Intake air temperature at startup: 4.5 ~ 35°C(40 ~ 95 °F)
Fuel level: 15 ~ 85 %
|
Threshold Value | Fuel tank’s vacuum > a prescribed threshold
|
Dagnosis Tme | Continuous
|
MIL On Condition | 2 Drive Cycles
|