|
|
Symptom List: P0442-EVAP SYSTEM MEDIUM LEAK Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P0442-EVAP SYSTEM MEDIUM When Monitored and Set Condition: P0442-EVAP SYSTEM MEDIUM LEAK When Monitored: Engine Running. Cold start test. Fuel Level greater than 12%. Ambient Temperature between 4°C and 32°C (39°F and 89°F) Close Loop fuel system. Test runs Set Condition: The PCM activates the EVAP Purge Solenoid to pull the EVAP system into a vacuum to close the NVLD switch. Once the NVLD switch is closed, the PCM turns the P0455-EVAP SYSTEM LARGE LEAK When Monitored: Engine Running. Cold start test. Fuel Level greater than 12%. Ambient Temperature between 4°C and 32°C (39°F and 89°F) Close Loop fuel system. Test runs Set Condition: The PCM activates the EVAP Purge Solenoid to pull the EVAP system into a vacuum to close the NVLD switch. Once the NVLD switch is closed, the PCM turns the POSSIBLE CAUSES INTERMITTENT CONDITION VISUAL AND PHYSICAL INSPECTION EVAPORATIVE EMISSION LEAK DETECTION EVAP PURGE SOLENOID OPERATION NVLD SWITCH OPERATION 386 DRIVEABILITY - NGC |