Compensation Of Injection Time (Volume); Injection Stop Control - Suzuki DL650 Service Manual

4-10 FI SYSTEM DIAGNOSIS
COMPENSATION OF INJECTION TIME (VOLUME)
The following different signals are output from the respective sensors for compensation of the fuel injection
time (volume).
SIGNAL
ENGINE COOLANT TEMPERATURE SEN-
SOR SIGNAL
INTAKE AIR TEMPERATURE SENSOR
SIGNAL
BATTERY VOLTAGE SIGNAL
DECELERATION SIGNAL
INJECTION STOP CONTROL
DESCRIPTION
I
When engine coolant temperature is low, injection time (vol-
ume) is increased.
When intake air temperature is low, injection time (volume)
is increased.
ECM operates on the battery voltage and at the same time,
it monitors the voltage signal for compensation of the fuel
injection time (volume). A longer injection time is needed to
adjust injection volume in the case of low voltage.
At high speed, the injection time (volume) is increased.
During acceleration, the fuel injection time (volume) is
increased in accordance with the throttle opening speed and
engine rpm. During deceleration, the fuel injection time (vol-
ume) is decreased.
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SIGNAL
1
DESCRIPTION
I
TIP OVER SENSOR SIGNAL
(FUEL SHUT-OFF)
When the motorcycle tips over, the tip over sensor sends a
signal to the ECM. Then, this signal cuts OFF current sup-
I
I
rev. limit rpm.
I
OVER-REV. LIMITER SIGNAL
plied to the fuel pump, fuel injector and ignition coil.
The fuel injectors stop operation when engine rpm reaches