The Environmental Protection Agency conducted a survey of 4,426 light-duty motor vehicles for tampering with emissions control devices. All vehicles inspected were classified into one of four mutually exclusive categories: tampered (at least one control device removed or rendered inoperative), arguably tampered (potential, but not clear-cut tampering), malfunctioning, and okay (all control devices present and apparently operating properly). The results were: tampered - 22%, arguable tampered - 29%, malfunctioning - 4%, and okay - 46%. The survey also found that 14 percent of the unleaded vehicles were subject to fuel switching (using leaded gas in vehicles requiring unleaded fuel).


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    Title :

    Motor Vehicle Tampering Survey - 1984


    Contributors:
    R. Greco (author)

    Publication date :

    1985


    Size :

    96 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English