Fuel Injection Control Block Diagram - Mazda RX-8 2004 Service Highlights

FUEL INJECTION CONTROL BLOCK DIAGRAM

• The PCM determines the engine operation conditions based on input signals and operates the injectors to
inject fuel with the optimum fuel injection timing and fuel injection time (fuel injection amount).
ECCENTRIC SHAFT POSITION
SENSOR
MAF SENSOR
SSV SWITCH
IAT SENSOR
ECT SENSOR
TP SENSOR
BARO SENSOR
KS
APP SENSOR
A/C AMPLIFIER
BATTERY POSITIVE VOLTAGE
FRONT HO2S
REAR HO2S
VEHICLE SPEED SIGNAL
(CAN SIGNAL)
IGNITION SWITCH
TCM (CAN SIGNAL)
DSC HC/UM (CAN SIGNAL)
End Of Sie
01–40–18
CONTROL SYSTEM
PCM
CONTROL ITEM
ENGINE SPEED
BASIC INJECTION TIME
AT ENGINE START
ENGINE SPEED CORRECTION
THROTTLE OPENING ANGLE
VOLUME REDUCTION CORRECTION
BAROMETRIC PRESSURE
CORRECTION
VOLUME REDUCTION
CORRECTION AT ENGINE START
INEFFECTIVE INJECTION TIME
FAST IDLE CORRECTION
WARM-UP VOLUME INCREASE
CORRECTION COEFFICIENT
VOLUME INCREASE CORRECTION
COEFFICIENT AFTER ENGINE START
VOLUME INCREASE CORRECTION
AT HIGH TEMPERATURE ENGINE
RESTART
ACCELERATION CORRECTION
POWER VOLUME INCREASE
CORRECTION
AIR-FUEL RATIO LEARNING
CORRECTION
PURGE CORRECTION
TRACTION VOLUME INCREASE
CORRECTION
AIR-FUEL RATIO FEEDBACK
CORRECTION
BASE ENGINE
DEMAND FUEL RATIO
INJECTOR MAX/MIN INJECTION TIME
INEFFECTIVE INJECTION TIME
NON-SYNCHRONIZED INJECTION AT
ENGINE START
NON-SYNCHRONIZED INJECTION AT
ACCELERATION
NON-SYNCHRONIZED INJECTION TIME AT
FUEL CUT RECOVERY
TRACTION CONTROL (DSC) FUEL CUT
FUEL CUT AT CONTINUOUS HIGH ENGINE SPEED
(ABOVE 200 KM/H {124.3 MPH})
FUEL CUT AT ABNORMAL ELECTRONIC
THROTTLE CONTROL
FUEL CUT AT DECELERATION
CALCULATED ITEM
FUEL
INJECTION
TIMING
FUEL INJECTOR
PRIMARY 1
SECONDARY
PRIMARY 2
(13B-MSP (HIGH POWER))
CHU014000140S19
CHU0140S016