4-8 FI SYSTEM
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 which
are determined according to the signals from various sensors that detect the engine and driving conditions.
ECM
Intake Air Pressure Intake air pressure
Sensor (IAP Sensor) signal
Basic
Crankshaft Position Engine speed fuel
Sensor (CKP Sensor) signal injection
time
Throttle Position Throttle opening
Sensor (TP Sensor) signal
Various Various signals
Compensation
Sensors
Ultimate
fuel
Injectors
Injection signal
injection
time
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