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Circuit/System Testing

    NOTE:
    • Refer to the J 41413-200:  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.
  1. Disconnect the purge tube at the quick connector on the evaporative emission canister side of the Q12 evaporative emission canister purge solenoid valve and install the CH 48096:  Port Tool.
  2. Using a scan tool, close the EVAP canister vent valve to seal the EVAP system.
  3. 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. See Special Tools .
    • If a leak is detected, use the J 41413-200  to apply smoke to the EVAP system at the service port or the purge tube until the leak is located using the J 41413-SPT  . See Special Tools .
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