Mazda 2009 RX-8, Особенности сервиса

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CONTROL SYSTEM [13B-MSP]
01-40–14
2009 Mazda RX-8 Serv i ce H i ghl i ghts (3452–1U–08C)
FUEL INJECTION CONTROL BLOCK DIAGRAM [13B-MSP]
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x
The PCM determ i nes the eng i ne operat i on cond i t i ons based on i nput s i gnals and operates the i n j ectors to
i n j ect fuel w i th the opt i mum fuel i n j ect i on t i m i ng and fuel i n j ect i on t i me (fuel i n j ect i on amount) .
End Of S i e
FUEL INJECTION CONTROL OPERATION [13B-MSP]
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Fuel Inject i on T i m i ng
x
The PCM calculates the opt i mum fuel i n j ect i on t i m i ng accord i ng to the eng i ne operat i on cond i t i ons and
operates the i n j ectors .
x
The fuel i n j ect i on t i m i ng i s controlled at eng i ne start and after eng i ne start .
x
At eng i ne start (eng i ne speed i s w i th i n 500 rpm), fuel i n j ect i on t i m i ng control at eng i ne start i s performed and
after determ i n i ng that the eng i ne has started (eng i ne speed i s 500 rpm or more), i n j ect i on t i m i ng control after
eng i ne start i s performed .
Fuel i nject i on t i m i ng at eng i ne start
—
The i n j ect i on t i m i ng at eng i ne start operates for a per i od unt i l eng i ne start has been determ i ned and i n j ects
at BTDC 455
q
CA (crank angle pos i t i on) .
PCM
ECCENTRIC SHAFT POSITION
SENSOR
MAF SENSOR
IAT SENSOR
ECT SENSOR
BARO SENSOR
(BUILT INTO PCM)
BATTERY
NEUTRAL SWITCH (MT)
A/F SENSOR
HO2S
A/C SWITCH
CAN
CONTROL ITEM
CALCULATED ITEM
ENGINE SPEED
FUEL
INJECTION
TIMING
BASIC INJECTION TIME
AT ENGINE START
ENGINE SPEED CORRECTION
THROTTLE OPENING ANGLE
VOLUME REDUCTION CORRECTION
VOLUME REDUCTION
CORRECTION AT ENGINE START
INEFFECTIVE INJECTION TIME
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
DECELERATION CORRECTION
POWER VOLUME INCREASE
CORRECTION
AIR-FUEL RATIO LEARNING
CORRECTION
AIR-FUEL RATIO FEEDBACK
CORRECTION
PURGE CORRECTION
BASE ENGINE
DEMAND FUEL RATIO
INJECTOR MAX/MIN 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
INJECTION TIMING CONTR
OL
INJECTION
TIMING
CONTR
OL A
T ENGINE ST
AR
T
INJECTION
TIMING CONTR
OL AFTER ENGINE ST
AR
T
SYNCHR
ONIZED INJECTION CONTR
OL
NON-SYNCHR
ONIZED
INJECTION CONTR
OL
FUEL CUT CONTR
OL
INJECTION V
OLUME
AT ENGIN ST
AR
T
AMOUNT OF CORRECTION
ENGINE DEMAND FUEL
V
OLUME
EFFECTIVE INJECTION PULSE
WIDTH
FINAL INJECTION PULSE
WIDTH
FUEL INJECTOR (RP, RS)
FUEL INJECTOR (FP, FS)
TP SENSOR NO . 1, NO . 2
APP SENSOR NO . 1, NO . 2
BRAKE SWITCH
IGNITION SWITCH
CPP SWITCH (MT)
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