Honda 1986 GoldWing GL1200A Manual page 77

Excessive black smoke.
Note: Check the following items before using this chart:
1)
Engine
IS
at normal operating temperature.
2)
Spark plug condition.
g
y y
LED's: Cl1eck LED's on ECU with
LED's On
I
FAULTV PART: Inspect the system or
I
engine running.
I parts Indicated.
LED's Off
l
Normal
• Faulty ECU. Try with a known good ECU.
INJECTORS: Inspect eaCh Injector
Abnormal
(see page 10-20).
• Faulty injector or wires.
Normal
FUEL PRESSURE: Check fuel pressure
Abnormal
(see page 10-20).
• See page 10-9.
Normal
HOSES: Check P8 sensor hoses for
Blocked
blockape with a vacuum pump
• Too rich a fuel mixture due to
(see page 10-18).
incorrect pressure to PB sensors.
Clear
SENSORS: Check the following sensors:
Abnormal
PB sensor (see page 10-22).
• Faulty sensor.
TW sensor (see page 10-30)
Normal
Loose or
WIRING: Check each sensor for poor
Broken
contact at connectors or for a broken wire.
• Repair as necessary.
I
Not Loose or Broken
• Fault ECU Tr with a known
ood ECU.
(cont'd)
10-17