Suzuki GSX-R750, Service Manual

Page: 164 / 495

FI SYSTEM AND INTAKE AIR SYSTEM 4-17
CMP sensor
Signal rotor
CRANKSHAFT POSITION SENSOR (CKP SENSOR)
The signal rotor is mounted on the right end of the crankshaft,
and the crankshaft position sensor (Pick-up coil) is installed on
the right side of the middle crankcase.
The sensor generates the pick-up signal to be supplied to the
ECM.
The ECM calculates and decides both the fuel injection timing
and ignition timing.
The injection volume increases when the engine rpm is high.
CAMSHAFT POSITION SENSOR (CMP SENSOR)
The signal rotor is installed on the intake camshaft, and the cam-
shaft position sensor (Pick-up coil) is installed on the cylinder
head cover.
The sensor generates the pick-up signal to be supplied to the
ECM.
The ECM calculates and decides the cylinder identity and se-
quential injection timing.
Resistance value
Lo
w
High
Low
High
Temperature
Thermistor
INTAKE AIR TEMPERATURE SENSOR (IAT SENSOR)
The intake air temperature sensor is installed at the right side of
the air cleaner box.
The sensor detects the intake air temperature in thermistor resis-
tance value. With this resistance value converted to voltage sig-
nal, the signal is sent to the ECM. The injection volume increases
as intake air temperature decreases.
The thermistor resistance value increases when the intake air
temperature is low, and decreases when the intake air tempera-
ture is high.