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Circuit/System Testing

NOTE:
  • Refer to the EN 41413-A:  EEST operation manual for detailed instructions in Evaporative Emission Control System Description .
  • 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. Connect the EN 41413-A:  EEST to the CH 48096:  Port Tool.
  3. Using a scan tool close the evaporative emission canister vent solenoid valve to seal the evaporative emission system.
  4. Use the flow meter on the EN 41413-A:  EEST, calibrated to 0.51 mm (0.020 in) to determine that there is no leak in the evaporative emission system.
    • If a leak is detected, use the EN 41413-A:  EEST to apply smoke to the evaporative emission system at the purge tube until the leak is located using the EN 41413-SPT:  White Light.
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