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SYSTEM AND METHODS FOR REDUCING VEHICLE EVAPORATIVE EMISSIONS

  • US 20170198671A1
  • Filed: 01/08/2016
  • Published: 07/13/2017
  • Est. Priority Date: 01/08/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • monitoring a fuel injector that supplies fuel to an engine cylinder having intake and exhaust valves; and

    following an engine-off event and responsive to an undesired fuel outflow from the fuel injector;

    positioning the intake valve and the exhaust valves to respective open and closed positions;

    coupling the cylinder to a fuel vapor storage canister; and

    purging fuel vapors from the undesired fuel outflow through the intake valve to the canister.

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