Circuit/System Testing
NOTE:
- Refer to the GE-41413-A Evaporative emissions system tester (EEST) operation manual for detailed instructions in Evaporative Emission System Diagnosis .
- Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.
- Ensure that the underbody temperature of the vehicle and the tester are similar.
- Disconnect the purge tube at the quick connector on the EVAP canister side of the purge solenoid valve and install the CH-48096 EVAP service access port tool . Connect the GE-41413-A Evaporative emissions system tester (EEST) to the vehicle at the EVAP service port adapter.
- Using a scan tool, close the EVAP vent solenoid valve to seal the EVAP system.
- Use the flow meter on the GE-41413-A
Evaporative emissions system tester (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 GE-41413-A Evaporative emissions system tester (EEST) to apply smoke to the EVAP system at the service port or the purge tube until the leak is located using the GE-41413-SPT high intensity white light .