Circuit/System Verification w/o Service Bay Test
- Turn the nitrogen/smoke valve on the control panel to SMOKE.
- 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.
IMPORTANT:- 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.IMPORTANT: The EVAP vent solenoid valve will not remain closed when commanded ON with positive pressure applied to the EVAP system.
- Disconnect the EVAP vent line from the vent solenoid. Seal the EVAP vent using the correct plug from the J 41413-300 .IMPORTANT: Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.
- Activate the J 41413-200 and compare the flow meter stable floating indicator position to the red flag. The floating indicator should remain below the red flag.
- If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.