||Testing support for an evaluation of a Houston I/M program
||Automotive Testing Labs., Inc., Aurora, CO.;Environmental Protection Agency, Ann Arbor, MI. Test and Evaluation Branch.
||Environmental Protection Agency, Office of Mobile Source Air Pollution Control, Emission Control Technology Division,
Motor vehicles--Inspection--Texas--Houston ;
Automobiles--Pollution control devices
Exhaust emissions ;
Performance evaluation ;
Air pollution control equipment ;
Exhaust gases ;
Fuel consumption ;
Data processing ;
Vehicle inspection ;
Inspection stations ;
||NVFEL Library/Ann Arbor, MI
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||314 p. in various pagings ; ill. ; 28 cm.
The standard mass emission (Federal Test Procedure) was performed for determination of the effects of inspection and maintenance on a sample of passenger cars operating in the Houston area. This sample was also used for obtaining abbreviated emission test (short cycle test), fuel economy, and emission component system maladjustment and disablement and other data. Four-hundred eighty vehicles were inspected under the program: one-hundred from the 1980 model year, one-hundred 1979 vehicles, one-hundred 1978 vehicles, sixty 1977 vehicles, sixty 1976 vehicles and sixty from the 1975 model year. Both domestic and imported auto makes were examined. All vehicles which failed an initial inspection, a total of 206 vehicles, were subject to a baseline and set of replicate test sequences comprised of the FTP, the 50 Cruise Test, the Highway Fuel Economy Test, the Loaded Two Mode Test and the Four Speed Idle Test. A prescribed maintenance step preceded each of the replicate sequences. Failed vehicles were further subject to an emission control system maladjustment/disablement and status inspection, driveability evaluations and owner-interviews to obtain vehicle maintenance and useage data.
"EPA-460/3-80-021." "September 25, 1980." "October 1980"--Cover. "Contract No. 68-03-2935"--T.p. "EPA Project Officer: Thomas C. Bejma"--T.p.