• J2744

• 2008-08-11

• Fuel Systems Standards Committee

This document presents the requirements for a build-in service port to be used in vehicles intended to comply with Enhanced Evaporative Emission Requirements. The primary function of the Service Port (Valve Assembly-Evaporative Emission Canister Purge Harness Service) is to provide non-destructive access to the evaporative emissions system to enable testing of the integrity of the system. The Service Port is used to introduce air pressure or fuel vapors into, or evacuate them out of, the system. This access may be used for the following evaluations:Evaporative System Certifications Canister Loading and PumpingEnd-of-line Testing System IntegrityService (e.g. OBD MIL on) Leak Location and Repair VerificationIn-Use Compliance Testing Canister Loading and PurgingInspection/Maintenance Testing System Integrity and Purge Check

• SAE J 2744

• Automotive

• On-Board Diagnostics
• Fuel reformers
• Fuel systems
• Fueling safety