Disconnect the vapor tube-to-
EVAP
canister purge valve quick connect coupling (engine side).
Refer to:
Quick Release Coupling
(310-00A Fuel System - General Information - 1.6L Duratec-16V Ti-VCT (88kW/120PS) - Sigma, General Procedures).
Connect the VACUTEC Smoke Machine Fuel Evaporative Emission Tester to the
EVAP
canister purge valve fitting. Refer to the manufacturer's instructions.
Connect the scan tool and open the
EVAP
canister purge valve.
Using the scan tool, close the
EVAP
canister vent solenoid. Refer to the manufacturer's instructions.
Using the VACUTEC Smoke Machine Fuel Evaporative Emission Tester, pressurize the
EVAP
system.
Monitor the indicator flag on the VACUTEC Smoke Machine Fuel Evaporative Emission Tester. If the measurement is below the
indicator flag, the system has passed the leak test and the test procedure is complete. If the measurement is above the indicator
flag, the system has failed the leak test. If the leak test has failed, proceed to next step.
Introduce smoke from the VACUTEC Smoke Machine Fuel Evaporative Emission Tester into the
EVAP
system. Refer to the manufacturer's instructions.
Use the halogen light provided with the VACUTEC Smoke Machine Fuel Evaporative Emission Tester to look for smoke coming from
the
EVAP
system. This would indicate a leak point.