INTEGRATING ON-BOARD DIAGNOSTIC SYSTEM CAPABILITIES INTO THE INSPECTION AND REPAIR FUNCTIONS OF I/M PROGRAMS

At any point in time, a certain percentage of motor vehicles on the road are emitting in excess of their design standards due to repairable causes. Motor vehicle emissions inspection and maintenance (I/M) programs employ a short screening test to identify high emitters and a retest after repairs to confirm their effectiveness in reducing emissions. It is the initial screening test and the retest after repairs that differentiate I/M from a public information campaign about motor vehicle maintenance or from a program to train automotive mechanics. This report describes the capability of the newer motor vehicles to perform self-diagnosis, and how these capabilities could be integrated into both the inspection function and the repair function. Specific recommendations to the I/M programs are also included.

  • Corporate Authors:

    Environmental Protection Agency

    Emission Control Technology Division, 2565 Plymounth Road
    Ann Arbor, MI  United States  48105
  • Publication Date: 1990-12

Media Info

  • Pagination: 19 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00623255
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: EPA/AA/TSS/IM-90/1
  • Files: TRIS
  • Created Date: Jul 31 1992 12:00AM