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Fault
code
Symptom
No.
Malfunction detected in the
primary wire of the
33
cylinder-#1 left or right
ignition coil.
Malfunction detected in the
34
primary wire of the
cylinder-#2 left ignition coil.
Malfunction detected in the
primary wire of the
35
cylinder-#1 left or right
ignition coil.
Malfunction detected in the
primary wire of the
36
cylinder-#2 right ignition
coil.
Engine speed is high when
37
the engine is idling.
Decompression solenoid:
38
open or short circuit
detected.
Lean angle cut-off switch:
41
open or short circuit
detected.
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Open or short circuit in wire sub lead.
• Open or short circuit in wire harness.
• Malfunction in cylinder-#1 left or right
ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-
off circuit system.
• Open or short circuit in wire harness.
• Malfunction in cylinder-#2 left ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-
off circuit system.
• Open or short circuit in wire sub lead.
• Open or short circuit in wire harness.
• Malfunction in cylinder-#1 left or right
ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-
off circuit system.
• Open or short circuit in wire harness.
• Malfunction in cylinder-#2 right ignition coil.
• Malfunction in ECU.
• Malfunction in a component of ignition cut-
off circuit system.
• Open circuit in wire harness.
• Malfunction in throttle body.
• Malfunction in throttle cables.
• ISC valve is stuck fully open due to
disconnected ISC unit hose or coupler.
(High engine idle speed is detected with the
ISC valve stuck fully open even though
signals for the valve to close are
continuously being transmitted by the
ECU.)
• Malfunction in ECU.
• ECU fuse is blown.
• Open or short circuit in wire harness.
• Defective decompression solenoid.
• Malfunction in ECU.
• Improperly installed sensor.
• Open or short circuit in wire harness.
• Defective lean angle cut-off switch.
• Malfunction in ECU.
7-34
Diagnostic
code No.
30
32
31
30
32
33
54
55
08
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Troubleshooting
