Yamaha YBR250 2007, Руководство по обслуживанию

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FI
6-11
FUEL INJECTION SYSTEM
Fault
code
No.
Symptom
Probable cause of
malfunction
Diagnostic
code No.
31
The amount of air-fuel ratio
feedback compensation is
maintained continuously in
the vicinity of the upper
limit (lean air-fuel ratio). Open or short circuit in wiring
harness.
Fuel pressure too low.
Clogged injectors.
Defective O
2
sensor (unable
to output a rich signal)
Malfunction in other areas of
the fuel system.
Malfunction in ECU.
----
32
The amount of air-fuel ratio
feedback compensation is
maintained continuously in
the vicinity of the lower
limit (rich air-fuel ratio) Open or short circuit in wiring
harness.
Fuel pressure too high.
Faulty injectors (excessive
injection volume).
Defective O
2
sensor (unable
to output a lean signal).
Malfunction in other areas of
the fuel system.
Malfunction in ECU.
----
33
Primary lead of the ignition
coil: open circuit detected. Open circuit in wire harness.
Malfunction in ignition coil.
Malfunction in a component
of ignition cut-off circuit
system.
Malfunction in ECU.
D30
39
Fuel injector: open or short
circuit detected. Open or short circuit in wire
harness.
Defective fuel injector.
Improperly installed fuel
injector
Malfunction in ECU.
D36
41
Lean angle sensor: open
or short circuit detected Open or short circuit in wire
harness.
Defective lean angle sensor.
Malfunction in ECU.
D08