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SAE J2744
Requirements for Built-in Service Port for On-Board Diagnostics
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STANDARD published on 1.3.2020
The information about the standard:
Designation standards: SAE J2744
Publication date standards: 1.3.2020
SKU: NS-988707
Country: American technical standard
Category: Technical standards SAE
Annotation of standard text SAE J2744 :
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
- SUBFILE: Automotive
- TYPE OF DOCUMENT: Ground Vehicle Standard
- Stabilized: Mar 2020
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