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Symptom: P0441-EVAP PURGE SYSTEM PERFORMANCE When Monitored and Set Condition: P0441-EVAP PURGE SYSTEM PERFORMANCE When Monitored: Cold start test. Engine Running. Small Leak Test Passed. Set Condition: The PCM activates the EVAP Purge solenoid and gradually increases to maximum flow. During flow, the PCM looks for the NVLD switch to close. If the PCM does POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO INTERMITTENT CONDITION CHECKING EVAP PURGE SOLENOID FUNCTIONALITY EVAP PURGE SOLENOID VACUUM SUPPLY TEST ACTION APPLICABILITY 1 NOTE: If any of the following DTCs are set (P0443, P0452, P0453, P0498 or t, read DTCs and record the related Freeze Frame data. Is the Good Trip Counter displayed and equal to zero? All Yes → Go To 2 No → Refer to the INTERMITTENT CONDITION symptom in the Driveability category. 2 NOTE: After disconnecting the Evap Purge vacuum connections, inspect 9CAN9 side of the EVAP Purge Solenoid. t, actuate the EVAP Purge Solenoid . Does the vacuum drop when the solenoid is actuated? All Yes → Go To 3 No → Replace the Evap Purge Solenoid. Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC. 355 DRIVEABILITY - NGC |