DTC P144C: Evaporative Emission System Purge Check Valve Performance
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P144C: EVAPORATIVE EMISSION SYSTEM PURGE CHECK VALVE PERFORMANCE
| Description: | The powertrain control module (PCM) tests the EVAP canister purge check valve for a stuck open condition. The EVAP canister purge check valve test is performed during minimal boost conditions, once per drive cycle, when entry conditions are met. The DTC is set if the fuel tank pressure exceeds a calibrated amount within a specified amount of time during the test. | ||
| Possible Causes: |
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| Diagnostic Aids: | Install a new EVAP canister purge valve. Refer to the appropriate EVAPORATIVE EMISSIONS article . | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the appropriate DTC. | ||