Fi System Technical Features - Suzuki FL125S Service Manual

8-19 FL125SDW

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 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
Fuel injector
Intake air pressure
signal
Engine speed
signal
Throttle opening angle
signal
Various signals
Injection signal
ECM
Basic
fuel
injection
time
Compensation
Ultimate
fuel
injection
time