P144C - EVAP System Purge Flow Performance During Boost
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DTC DESCRIPTION P144C - EVAP SYSTEM PURGE FLOW PERFORMANCE DURING BOOST
| Description: | The EVAP check valve test is performed during minimal boost conditions, once per drive cycle, when entry conditions are met. This DTC sets when the fuel tank pressure exceeds a calibrated amount within a specified amount of time during the test (single path check valve), or when the fuel tank vacuum is less than a calibrated amount within a specified amount of time or when the fuel tank pressure exceeds a calibrated amount within a specified amount of time during the test (dual path check valve). | ||
| Possible Causes: |
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| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test HX. | ||