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Up-Shift Control System

Control system is provided on automatic transmission equipped vehicles only and is used to reduce O emissions by providing rapid engine warm-up. If engine is started while coolant temperature is in the preset temperature range, ECM holds transmission in a kickdown state for a certain duration. See Fig 4 .

Fig 1: Ignition Control System (Carbureted)
G67260Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Ignition Control System (Carbureted)
G67261Courtesy of SUBARU OF AMERICA, INC.
Fig 3: Anti-Afterburning System (Carbureted - Except Justy)
G67262Courtesy of SUBARU OF AMERICA, INC.
Fig 4: Up-Shift Control System
G67263Courtesy of SUBARU OF AMERICA, INC.
Fig 5: Ignition Control System (SPFI)
G67264Courtesy of SUBARU OF AMERICA, INC.