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GEN
INFO
FEATURES
Reactive injection duration:
A lag is created between the time the ECU outputs a fuel injection signal to the injector and the time
the injector actually opens. Therefore, the ECU calculates this lag in advance before sending the
actuation signal to the injector. The battery voltage determines the reactive injection duration.
• High voltage → short reactive injection duration
• Low voltage → long reactive injection duration
LIST OF FUEL INJECTION COMPENSATIONS
• Over-revving control
This function effects fuel cut-off control when the engine speed becomes greater than the pre-
scribed value. The fuel cut-off control regulates the engine speed by stopping the injection of fuel
into two cylinders when the engine speed becomes greater than the specified value. If the engine
speed increases further, this control stops the injection of fuel to all the cylinders. Thus, the over-
revving control effects fuel cut-off control in two stages.
Compensation item Check item Sensor used
Starting injection *1 Coolant temperature Coolant temperature sensor
After-start injection:
After-start enrichment *2 Coolant temperature Coolant temperature sensor
Warm-up enrichment *3 Coolant temperature Coolant temperature sensor
Intake temperature compensation *4 Intake temperature Intake temperature sensor
Acceleration compensation/decelera-
tion compensation *5
Intake air pressure Intake air pressure sensor
Throttle position Throttle position sensor
Coolant temperature Coolant temperature sensor