DTC P0441: EVAP Purge Flow Monitor Failure
NOTE:
EVAP purge solenoid may also be referred to as EVAP solenoid or proportional purge solenoid.
- Turn ignition on with engine off. Using scan tool, check for DTCs. If global good trip counter is not displayed and equal to zero, go to next step. If global good trip counter is displayed and equal to zero, go to step 3.
- At this time, conditions for EVAP purge flow monitor failure does not exist or is an intermittent problem. Using scan tool, read FREEZE FRAME data and PURGE FLOW PRE-TEST data while attempting to duplicate the condition that caused DTC to be set. If DTC for EVAP purge flow monitor failure reoccurs, go to next step. If DTC for EVAP purge flow monitor failure does not reoccur, condition no longer exists. Perform TEST VER-5A3 .
- Inspect all vacuum hoses for proper routing and check vacuum hoses from engine to EVAP purge solenoid, and from EVAP purge solenoid to the fuel tank for restrictions. EVAP purge solenoid is located near passenger's side strut tower. See Fig 1 and Fig 2 . EVAP canister is located on frame rail, directly below the driver's seat. If all hoses are okay, go to next step. If any hoses are improperly routed or restricted, repair as necessary. Perform TEST VER-5A3 .
- Remove EVAP purge solenoid. Lightly tap ports on EVAP purge solenoid on a clean solid surface. If foreign material comes out of ports on EVAP purge solenoid, go to next step. If no foreign material comes out of ports on EVAP purge solenoid, replace EVAP purge solenoid. Perform TEST VER-5A3 .
- Inspect vacuum line from EVAP purge solenoid to EVAP canister. EVAP canister is located on frame rail, directly below the driver's seat. If vacuum line is disconnected, ripped or cut, repair or replace vacuum line as necessary and replace EVAP purge solenoid. Perform TEST VER-5A3 . If vacuum line is not disconnected, ripped or cut, clean out vacuum line as necessary, and replace EVAP purge solenoid and EVAP canister. Perform TEST VER-5A3 .