Catalyst Pellets And Modification Of Secondary Air Sys; Mazda Rx-7 Exhaust Emission System Recall Campaign; Defect Information Report; Epa Recall Surveillance Test Results - Mazda 1983 RX7 Service Manual

CATALYST PELLETS & MODIFICATION OF SECONDARY AIR SYS
ARTICLE BEGINNING
TECHNICAL SERVICE BULLETIN

MAZDA RX-7 EXHAUST EMISSION SYSTEM RECALL CAMPAIGN 23702

Model
Recall No.
Date
Number of Affected Vehicles:

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
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

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³
³
Model Year Vehicle
³
ÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄ
³
1982
³
³
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Saturday, September 08, 2001 09:58AM
3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima,
Japan
³
³
Mileage
³
³
1 38,600
³
2 19,900
³
3 39,200
Article Text
1983 Mazda RX7
1982-83 Mazda RX-7
23702
February 17, 1987
91,112
³
Exhaust Emission (g/mile)
ÃÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄ
³ ³
HC
³ ³
1.51
³ ³
1.25
³ ³
1.16
³
CO NOx
³
6.01 0.88
³
5.14 0.69
³
4.79 0.58