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Systems and methods for diagnosing components in a vehicle evaporative emissions system

  • US 10,451,010 B2
  • Filed: 08/26/2016
  • Issued: 10/22/2019
  • Est. Priority Date: 08/26/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • capturing and storing fuel vapors in a fuel vapor canister positioned in a vehicle evaporative emission system, the fuel vapor canister removably coupled to a fuel tank that provides fuel to an engine that propels a vehicle;

    actively routing fuel vapors from the fuel vapor canister into a vent line coupling the fuel vapor canister to atmosphere; and

    diagnosing one or more evaporative emission system components responsive to the routing.

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