Circuit/System Testing
NOTE:
- Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.
- Refer to the J 41413-200: EEST operation manual for detailed instructions in Evaporative Emission System Diagnosis
- Connect the J 41413-200: EEST nitrogen/smoke hose to the J 41413-311: EVAP Plug brass cone adapter. Disconnect the hose at the fuel cap end of the GE 41415-50: Adapter. Connect the J 41413-311: EVAP Plug to the disconnected hose on the GE 41415-50: Adapter. Install the GE 41415-50: Adapter filler neck end only to the vehicle. For vehicles without a service port, disconnect the purge tube at the quick connector on the EVAP canister side of the EVAP canister purge solenoid valve and install the CH 48096: Port Tool.
- Seal the system and use the flow meter on the J 41413-200:
EEST, 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: EEST 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: Port Tool.