Circuit/System Testing
- Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.
- 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 J 41413-200 operation manual for detailed instructions.
- Connect the J 41413-200 to the vehicle at the EVAP service port. For vehicles without a service port, disconnect the purge tube at the quick connector on the EVAP canister side of the purge solenoid valve and install the CH-48096 .
- Using a scan tool, close the EVAP canister vent valve.
- Seal the system and use the flow meter on the J 41413-200
, calibrated to 0.51 mm (0.020 in) to determine that there is no leak in the EVAP system.
- If a leak is detected, use the J 41413-200 to apply smoke to the EVAP system at the service port or the filler neck until the leak is located. For vehicles without a service port, disconnect the purge tube at the quick connector on the EVAP canister side of the purge solenoid valve and install the CH-48096 .
IMPORTANT: