Mash Seventy - Injection Time (Injection Volume)

Chapter 4 EI system diagnosis Section 2 EI system technical features
4—6
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.
Intakeair pressure signal
Engine speed signal
Throttle opening signal
Various signal
Injection signal
Manifold absolute Pressure &
Intake Air Temperature Sensor
(MAP & IAT Sensor)
CKP Sensor
TP sensor
Various Sensors
Injectors
Basic
fuel
injection
time
Compensation
Ultim ate
fuel
injection
time
ECU