FI SYSTEM 4-9
FI SYSTEM TECHNICAL FEATURES
INJECTION TIME (INJECTION VOLUME)
The factors to determine the injection time include the basic fuel injection time which is calculated on the
basis of the intake air pressure, engine speed and throttle opening angle, and various compensations.
These compensations are determined according to the signals from various sensors that detect the engine
and driving conditions.
Intake Air Pressure
Sensor (IAP Sensor)
Crankshaft Position
Sensor (CKP Sensor)
Throttle Position
Sensor (TP Sensor)
Various
Sensors
Injectors
Intake air pressure
signal
Engine speed
signal
Various signals
Injection signal
Basic
fuel
injection
time
Compensation
Ultimate
fuel
injection
time
Throttle opening
signal
ECM
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