Mazda 1983 RX7 - Catalyst Pellets and Modification of Secondary Air Sys; Mazda RX-7 Exhaust Emission System Recall Campaign; Defect Information Report; EPA Recall Surveillance Test Results

CATALYST PELLETS & MODIFICATION OF SECONDARY AIR SYS
Article Text
1983 Mazda RX7
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Saturday, September 08, 2001 09:58AM
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN
MAZDA RX-7 EXHAUST EMISSION SYSTEM RECALL CAMPAIGN 23702
Model 1982-83 Mazda RX-7
Recall No. 23702
Date February 17, 1987
Number of Affected Vehicles: 91,112
DEFECT INFORMATION REPORT
1. Manufacturer: Mazda Motor Corporation
2. Description of the Defect: Recall Surveillance tests performed
by EPA found some MY-1982 and 1983 Mazda RX-7's to be in non-
compliance of Federal exhaust emission standards for HC and CO.
Mazda's investigation determined the non-compliance to be due to
excessively-rich air fuel mixture and premature deterioration of
the vehicle's catalyst.
3. Class or Category of Vehicles Potentially Affected:
1982-83 Mazda RX-7 (Federally Certified Vehicle)
4.1. Number of Vehicles Estimated to Have the Defect: The number
of vehicles that have the problem identified in (2) above is
estimated to be 91,112 units in accordance with manufacturer's
production records.
4.2 Production Plants: Mazda Motor Corporation
3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima,
Japan
5. Evaluation of Emissions Impact and Description of Driveability
Problems: The defect may cause noncompliance with Federal
emission standards for unburned hydrocarbons and carbon
monoxide. The defect has no effect on driveability.
6. Available Emissions Data: The EPA recall surveillance test
results are shown in the following tables:
EPA RECALL SURVEILLANCE TEST RESULTS
ÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
³ ³ ³ Exhaust Emission (g/mile)
Model Year ³ Vehicle ³ Mileage ÃÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄ
³ ³ ³ HC ³ CO ³ NOx
ÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄ
1982 ³ 1 ³ 38,600 ³ 1.51 ³ 6.01 ³ 0.88
³ 2 ³ 19,900 ³ 1.25 ³ 5.14 ³ 0.69
³ 3 ³ 39,200 ³ 1.16 ³ 4.79 ³ 0.58