7 - 24
FI
FUEL INJECTION SYSTEM
Code No.
32
Symptom
The amount of air-fuel ratio feedback compensation is maintained contin-
uously in the vicinity of the lower limit (air-fuel ratio is rich).
Used diagnostic code No. 01 (throttle position sensor)
Inspection operation item and probable cause Operation item and countermeasure
Reinstatement
method
Defective O
2
sensor
(unable to output a lean signal).
Replace if defective.
Reinstated by
starting the engine,
warming it up until
the coolant tem-
perature is 60 °C
(140 °F) or more,
and then running it
between 2,000 ~
3,000 r/min until
the engine trouble
indicator turns off.
Excessive volume of fuel injected by injector.
Open circuit on the 5 V side or short circuit in
wiring harness or sub lead.
Repair or replace if there is an open or short
circuit.
Main wiring harness
Black/Blue - White
Gray/Green - Blue
The fuel pressure is too high.
Compare the fuel pressure at idle and with
throttle open.
About the same
→
Normal
Too high
→
Inspect the pressure reg-
ulator.
Inspect the pressure reg-
ulator hose for pinching or
kinking.
Inspect the fuel return
hose for pinching or kink-
ing.
Inspect the throttle posi-
tion sensor.
Other:
Malfunction in the fuel system (clogging,
etc.).
Replace if defective.
Refer to “CHECKING THE FUEL PUMP AND
PRESSURE REGULATOR OPERATION”.
Repair or replace if there is a malfunction.
Repair or replace if there is a malfunction.
Execute diagnostic code 01.
Repair or replace if there is a malfunction.
Connected state of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
If there is a malfunction, repair it and connect it
securely.
O
2
sensor coupler
Sub wiring harness coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
Summary of Contents for FJR1300
Page 1: ...LIT 11616 16 18 5JW 28197 10 FJR1300R FJR1300RC SERVICE MANUAL ...
Page 6: ......
Page 82: ...2 22 SPEC TIGHTENING TORQUES Cylinder head tightening sequence Crankcase tightening sequence ...
Page 89: ...2 29 SPEC 1 Crankshaft 2 Main axle 3 Drive axle OIL FLOW DIAGRAMS ...
Page 90: ...2 30 SPEC 1 Oil nozzle 2 Main gallery bolt 3 Crankshaft OIL FLOW DIAGRAMS ...
Page 91: ...2 31 SPEC 1 Main axle 2 Drive axle 3 Oil delivery pipe OIL FLOW DIAGRAMS ...
Page 92: ...2 32 SPEC 1 Exhaust camshaft 2 Oil check bolt 3 Intake camshaft OIL FLOW DIAGRAMS ...
Page 94: ...2 34 SPEC 1 Crank pin 2 Crankshaft OIL FLOW DIAGRAMS ...
Page 97: ...2 37 SPEC 1 Main axle 2 Drive axle 3 Middle drive shaft OIL FLOW DIAGRAMS ...
Page 98: ...2 38 SPEC COOLING SYSTEM DIAGRAMS 1 Radiator COOLING SYSTEM DIAGRAMS ...
Page 99: ...2 39 SPEC 1 Water jacket joint 2 Oil cooler COOLING SYSTEM DIAGRAMS ...
Page 101: ...2 41 SPEC 1 Coolant reservoir 2 Radiator 3 Water pump COOLING SYSTEM DIAGRAMS ...
Page 107: ...2 47 SPEC CABLE ROUTING 1 Tail brake light lead ...
Page 196: ...3 80 CHK ADJ ADJUSTING THE HEADLIGHT BEAMS ...
Page 288: ...4 92 CHAS 3 Install bearing 1 to the swingarm Installed depth a 4 0 mm 0 16 in SWINGARM ...
Page 531: ...8 35 ELEC LIGHTING SYSTEM ...
Page 570: ......
Page 571: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...