Written for Oldsmobile dealership mechanics, this factory-published original manual shows you how to diagnose your emission system. This manual is full of diagnosis charts for the Computer Controlled Emissions System CCES , which replaced the C-4 system during the 1980 model year. This system helps control exhaust emissions by providing the proper air to fuel ratio to the carburetor and by injecting air into the exhaust system. It also controls engine spark timing. These charts will help you diagnose problems that may need repair. The book also contains charts for trouble codes. For other repairs, you will need the 1980 Oldsmobile Shop Manual. This manual covers all 1980 Oldsmobile models equipped with the CCES system for the 4.3L VIN F (Cutlass Series) or the 3.8L VIN A engine (Cutlass, Delta 88, or Starfire). The book has 39 pages. Buy now to own the best manual for your emissions system.
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