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Home >> Nissan-Datsun >> 2004 >> Sentra L4-1.8L (QG18DE) >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Evaporative Emissions System >> Testing and Inspection >> Scan Tool Testing and Procedures
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Scan Tool Testing and Procedures

EVAP SERVICE PORT




Positive pressure is delivered to the EVAP system through the EVAP service port. If fuel vapor leakage in the EVAP system occurs, use a leak detector to locate the leak.

How to Detect Fuel Vapor Leakage

CAUTION:
- Never use compressed air or a high pressure pump.
- Do not start engine.
- Do not exceed 4.12 kPa (0.042 kg/sq.cm , 0.6 psi) of pressure in EVAP system.

NOTE: Improper installation of adapter to the service port may cause a leak.
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