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SAE J2744_202003 : 2020

Requirements for Built-in Service Port for On-Board Diagnostics

Standard Details

This document presents the requirements for a built-in service port to be used in vehicles intended to comply with Enhanced Evaporative Emissions 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 evacuates them out of, the system. This access may be used for the following evaluations:• Evaporative System CertificationsCanister Loading and Purging• End-of-line TestingSystem Integrity• Service (e.g. OBD MIL on)Leak Location and Repair Verification• In-Use Compliance TestingCanister Loading and Purging• Inspection/Maintenance TestingSystem Integrity and Purge Check

Cross Reference: 40CFRPart86,J1113/1_201310,J1681_202305,J551/1_201501

General Information

Status : Stabilized
Standard Type: Main
Document No: SAE J2744_202003 : 2020
Document Year: 2020
Pages: 9

Life Cycle

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SAE J2744_202003 : 2020
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