DTC P2450 - EVAP System Switching Valve Performance/Stuck Open
WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P2450 - EVAP SYSTEM SWITCHING VALVE PERFORMANCE/STUCK OPEN
| Description: The PCM commands the evaporative emission (EVAP) vapor blocking valve closed while vacuum is present in the fuel tank. If the valve does not close, the vacuum in the tank is quickly lost. This DTC sets when the rate of vacuum loss is greater than a calibrated threshold. | |||
Possible Causes:
|
|||
| Diagnostic Aids:
Retrieve all continuous memory and on-demand self-test DTCs from the PCM. Diagnose any circuit related EVAP vapor blocking valve DTCs before diagnosing this performance DTC. Visually inspect the EVAP canister inlet port, EVAP canister vent valve filter, fresh air hose and canister vent hose assembly for restrictions, contamination or debris. |
|||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST HX . | ||