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FUEL INJECTION SYSTEM
2-7
TROUBLE No.
#
POSSIBLE CAUSE
1
2
3
4
5
6
7
8
9
10
U
0
THROTTLE SENSOR
©
©
ON
ON
•
Connector not connected
©
©
©
ON
*,
•
Poor contact of terminal
6.
©
©
ON
ON
•
Short circuit
©
©
ON
ON
•
Discontinuity of wiring harness
0
0
6.
0
©
©
OFF
*
•
Performance characteristics unusual
PRESSURE REGULATOR
0
0
© © ©
0
6.
*2
*2
•
Sensing hose not connected
6.
0
0
©
OFF
*
•
Fuel pressure too high
0
0
0
©
© ©
©
*2
*2
•
Fuel pressure too low
FUEL INJECTOR
e.g
(~)
0
0
0
0
0
ON
*1
•
Connector not connected
0
0
0
©
©
0
ON
ON
•
Poor contact of terminal
© ©
0
0
0
0
ON
ON
•
Short circuit
© ©
0
0
0
0
0
ON
ON
•
Discontinuity of wiring harness
6.
0
0
6.
0
0
6.
0
*2
*2
•
Performance characteristics unusual
6.
0
6.
6.
0
0
6-
*2
*2
•
Clogged filter
6.
0
0
0
0
0
6.
*2
*2
•
Clogged nozzle
0
OFF
*
•
Stuck open
0
0
0
OFF
*
•
Slight leakage from seat
CRANK ANGLE SENSOR
©
ON
ON
•
Connector disconnected
0
0
©
©
©
0
0
ON
*1
•
Poor contact of terminal
©
ON
ON
•
Short circuit
©
ON
ON
•
Discontinuity of wiring harness
POWER TRANSISTOR OF IGNITION COIL
©
OFF
*
•
Connector not connected
0
0
© © ©
0
OFF
*
•
Poor contact of terminal
©
OFF
*
•
Short circuit
©
OFF
*
•
Discontinuity of wiring harness
AIR REGULATOR [1800 cc model only]
©
OFF
*
•
Connector not connected
0
©
0
OFF
*
•
Short circuit
©
OFF
*
•
Discontinuity of wiring harness
KNOCK SENSOR [2700 cc model only]
©
ON
ON
•
Connector not connected
0
0
ON
ON
•
Short circuit
©
ON
ON
•
Discontinuity of wiring harness
1
2
3
4
5
6
7
8
9
10
U
D
#:
CHECK ENGINE light
31
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