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GEN
INFO
FEATURES
Determining the final injection duration
The intake air volume determines the basic injection duration. However, at a given intake air vol-
ume, the volume of fuel that is required varies by the engine operating conditions such as accelera-
tion or deceleration, or by weather conditions. This system uses various sensors to precisely check
these conditions, applies compensations to the basic injection duration, and determines the final
injection duration based on the operating condition of the engine.
Composition of final injection duration
1
Injection at start *1
2
After-start enrichment *2
3
Warm-up enrichment *3
4
Acceleration compensation *5
5
Fuel cut-off
Deceleration compensation *5
6
Basic injection duration
7
Voltage compensation duration
È
RPM
É
Injection duration
Ê
Cranking
Ë
Warm-up
Ì
Idle
Í
Acceleration
Î
Constant
Ï
Deceleration
Ð
Start
Ñ
After start
Intake air pressure
Engine rpm
Close or
open of
throttle
Basic injection
quantity
Compensation
Injection
command
Water
temperature
Intake air
temperature
Atmospheric
pressure
Battery voltage