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Systems and methods for opportunistic vehicle evaporative emissions test diagnostic

  • US 9,828,951 B2
  • Filed: 04/06/2016
  • Issued: 11/28/2017
  • Est. Priority Date: 04/06/2016
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • responsive to an indication that a vehicle is in the process of a car wash event;

    sealing a fuel system which supplies fuel to an engine propelling the vehicle and an evaporative emissions system coupled to the fuel system; and

    conducting a diagnostic test for the presence of undesired evaporative emissions.

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