Installation Instructions
Manuals
Brands
Sym Manuals
Scooter
Maxsym 400
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4. Fuel Injection System
4-1
1
Idle Speed Control
Valve (ISC stepper motor)
Function
ECU controls
ISC stepper moto
r to adjust the by
pass intake air qu
antity and stabil
ized the idle spee
d.
I
SC
ECU
B
attery
+V
a
-V
a
+Vb
-Vb
S
tep
S
N
S
S
N
N
V
a
Vb
T
o t
his chapter con
tent
s
1
...
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