TGB EST 1000, Service Manual

Page: 99 / 269

4-2. FUEL INJECTION SYSTEM
4-2-61
Notes:
1. Integrated test motorcycle, according to the "Comprehensive Maintenance list"
implementation.
2. Spare parts, according to the "EFI System components description" implementation.
Comprehensive Maintenance List
No.
Maintenanc
e Project
Testing Procedures Test items Determine benchmarks Fault reasons
1
Power and
voltage
•
Use meter direct
measurement battery
voltage
•
Use diagnosis tool
detection of battery
voltage
•
Battery
•
Battery voltage = 10 V
above
•
Battery electricity
•
Battery connector
loose
•
Harness circuit
opening
•
ECU coupler not
connected properly
2
Fuel
pressure
•
Use fuel pressure
gauge connected in
series between the
injector and the
pressure regulating
valve
•
Main switch ON but
not start engine
•
Check fuel pressure
•
Start engine (Idle)
•
Check change of fuel
pressure
•
Throttle several
rotation
•
Check to the change
of fuel pressure again
•
Open the main
switch but not to
start the engine of
pressure
•
Pressure in Idle
•
Rotating throttle,
situation of
pressure changes
•
Open main switch but not
start:
Pressure = 250 kPa (stable
value)
•
Idle state:
Pressure = 300+/-6 kPa
(Beating situation from top
to bottom)
•
Rotating throttle moment:
Pressure=300+/-6kPa(sligh
tly beating)
•
Fuel not enough
•
Fuel pump relay
fault
•
Fuel pump fault
•
Injector fault
•
ECU fault
3
Ignition
state
•
The spark plug
removed from the
cylinder head but the
power lines still ring
•
Start engines or use
for the diagnosis tool of
output view spark plug
ignition conditions
•
Spark plug
specifications
•
Whether the
spark plug ignition
•
Spark plug sparks
whether it is
normal strength
•
Specifications: NGK-CR7H
•
Ignition conditions:
With traditional engines
found ways
•
Spark plug fault
•
Roll over sensor
fault
•
ECU No. 12 pin fault
•
Ignition coil fault
•
Crankshaft position
sensor fault
4
Engine
vacuum
•
Diagnosis tool to
detect the use of
•
Manifold pressure
of diagnosis tool
•
Manifold pressure = 32~38
kPa
•
Valve clearance
abnormal
•
Intake system leak
5
Injection
state
•
The injector removed
from the throttle body
but not dismantle
pipeline
•
Open the main
switch but did not
start engine the
injection situation
•
Not started, Injector not
leaking fuel
•
In started, the injection
state must show fan shape
•
Fuel pump relay
fault
•
Fuel pump fault
•
Injector fault