Circuit/System Verification w/o Service Bay Test
- Verify the following conditions do not exist in the EVAP system:
- Loose, incorrect, missing, or damaged fuel fill cap
- Loose, missing, or damaged service port schrader valve
- A damaged EVAP purge solenoid
- Disconnected, incorrectly routed, kinked, or damaged EVAP pipes and hoses
- A damaged EVAP vent valve or EVAP canister
- If you find any of the above conditions, repair as necessary.
- Ensure that the vehicle underbody temperature is similar to the ambient temperature and allow the surrounding air to stabilize before starting the diagnostic procedure. The system flow will be less with higher temperatures.
- Refer to the J 41413-200 operation manual for detailed instructions.
- Calibrate the J 41413-200 Flow Meter to the correct leak orifice for the vehicle.
- Remove the fuel fill cap. Connect the GE-41415-50 to the fuel tank filler neck. Connect the J 41413-200 to the GE-41415-50 .
- Disconnect the EVAP vent line from the vent solenoid. Seal the EVAP vent using the correct plug from the J 41413-300 .
- Activate the J 41413-200 and compare the flow meter's stable floating indicator position to the red flag. The floating indicator should remain below the red flag.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
IMPORTANT:
IMPORTANT:
The EVAP vent solenoid valve will not remain closed when commanded ON with positive pressure applied to the EVAP system.
IMPORTANT:
Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.