Mazda 626 Station Wagon, Workshop Manual, Page: 31 / 577

CONTROL SYSTEM
CONTROL SYSTEM
OUTLINE
• Construction and operation of adopted components of the control system is the same as that of the current
626 (GF), 626 station wagon (GW) FP, FS, FS (Hi-power) engine models.
• The engine control (PCM program) of the face-lifted FP, FS, FS (Hi-power) engine models (except for
GF4A-EL models) is essentially carried over from the current MPV (LW) FS engine models except for the
following:
— Idle speed has been changed to match vehicle characteristics.
— High vehicle speed fuel reduce corrections of fuel injection control and electronic spark advance (ESA)
control have been eliminated.
— Operation conditions of pressure regulator control (PRC), 02S heater control, EGR control and A/C cut-off
control have been modified to match vehicle characteristics.
— Shapes and terminal numbers of PCM have been changed.
• The engine control (PCM program) of the face-lifted 626 FP, FS, FS (Hi-power) engine models (for GF4A-EL
models) is the same as the current 626 station wagon (GW) FP, FS, FS (Hi-power) engine ATX models.
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