Yamaha YZF-R1 Service Manual Page 361
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- Table of contents
- TROUBLESHOOTING
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FI
FUEL INJECTION SYSTEM
Fault code No. 23 Symptom Open or short circuit detected from the atmospheric pressure sensor.
Used diagnostic code No. 02 (atmospheric pressure sensor)
Inspection operation item and probable cause Operation item and countermeasure Reinstatement
method
Defective atmospheric pressure sensor. Replace if defective.
1. Connect the pocket tester (DC 20 V) to the
atmospheric pressure sensor coupler ter-
minal as shown.
2. Set the main switch to “ON”.
3. Measure the atmospheric pressure sensor
output voltage.
4. Is the atmospheric air pressure sensor OK?
Reinstated by turn-
ing the main switch
ON.
Open or short circuit in wiring harness. Repair or replace if there is an open or short
circuit.
Between sensor coupler and ECU coupler
Blue - Blue
Black/Blue - Black/Blue
Pink - Pink
Installed condition of atmospheric pressure
sensor
Check the installed area for looseness or
pinching.
Connected condition 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.
Atmospheric pressure sensor coupler
Main wiring harness ECU coupler
Tester positive probe
→
blue
1
Tester negative probe
→
black/blue
2
1
2
Atmospheric pressure sensor
output voltage
3.75 ~ 4.25 V
- YZF-R1PC 3
- EAS00000 5
- IMPORTANT MANUAL INFORMATION 6
- HOW TO USE THIS MANUAL 7
- EAS00008 8
- TABLE OF CONTENTS 10
- CHAPTER 1 11
- GENERAL INFORMATION 11
- CHAPTER 2 11
- SPECIFICATIONS 11
- CHAPTER 3 12
- CHAPTER 4 14
- CHAPTER 5 15
- OVERHAULING THE ENGINE 15
- CHAPTER 6 18
- COOLING SYSTEM 18
- CHAPTER 7 18
- FUEL INJECTION SYSTEM 18
- CHAPTER 8 19
- ELECTRICAL 19
- CHAPTER 9 20
- TROUBLESHOOTING 20
- FEATURES 23
- IMPORTANT INFORMATION 44
- CHECKING THE CONNECTIONS 46
- SPECIAL TOOLS 47
- ENGINE SPECIFICATIONS 52
- CHASSIS SPECIFICATIONS 61
- ELECTRICAL SPECIFICATIONS 65
- CONVERSION TABLE 67
- TIGHTENING TORQUES 67
- EAS00031 73
- EAS00032 74
- COOLING SYSTEM DIAGRAMS 75
- ENGINE OIL LUBRICATION CHART 79
- LUBRICATION DIAGRAMS 80
- CABLE ROUTING 85
- INTRODUCTION 96
- 7 Nm (0.7 m 98
- FUEL TANK 100
- COWLINGS 102
- AIR FILTER CASE 103
- ADJUSTING THE VALVE CLEARANCE 104
- CAUTION: 110
- EAS00052 111
- EAS00056 112
- CHECKING THE SPARK PLUGS 114
- CHECKING THE SPARK PLUGS/ 115
- CHECKING THE ENGINE OIL LEVEL 118
- CHANGING THE ENGINE OIL 119
- CHANGING THE ENGINE OIL/ 121
- CHECKING THE EXHAUST SYSTEM 125
- ADJUSTING THE EXUP CABLES 126
- ADJUSTING THE EXUP CABLES/ 127
- CHECKING THE COOLANT LEVEL 127
- CHECKING THE COOLING SYSTEM 128
- CHANGING THE COOLANT 129
- ADJUSTING THE FRONT BRAKE 132
- ADJUSTING THE REAR BRAKE 133
- ADJUSTING THE REAR BRAKE/ 134
- Front brake 135
- Rear brake 135
- EAS00131 136
- EAS00135 136
- ADJUSTING THE SHIFT PEDAL/ 138
- LUBRICATING THE DRIVE CHAIN/ 140
- CHECKING THE FRONT FORK 143
- ADJUSTING THE FRONT FORK LEGS 144
- REAR SHOCK ABSORBER ASSEMBLY 146
- ASSEMBLY 147
- ASSEMBLY/CHECKING THE TIRES 148
- CHECKING THE TIRES 149
- CHECKING THE TIRES/ 151
- CHECKING THE WHEELS 151
- EAS00170 152
- EAS00171 152
- EAS00172 152
- EAS00174 152
- ELECTRICAL SYSTEM 153
- Voltage should be measured 30 156
- CHECKING THE FUSES 158
- REPLACING THE HEADLIGHT BULBS 160
- ADJUSTING THE HEADLIGHT BEAM 161
- FRONT WHEEL AND BRAKE DISCS 162
- REAR WHEEL AND BRAKE DISC 170
- FRONT AND REAR BRAKES 177
- 16 Nm (1.6 m 188
- 6 Nm (0.6 m 196
- FRONT FORK 206
- 40 Nm (4.0 m 207
- HANDLEBARS 217
- STEERING HEAD 222
- SWINGARM AND DRIVE CHAIN 230
- EAS00188 237
- EAS00189 238
- Order Job/Part Q’ty Remarks 239
- 7 Exhaust valve pipe 1 239
- 8 Muffler 1 239
- EAS00191 242
- EAS00192 243
- CAMSHAFT 244
- CYLINDER HEAD 255
- VALVES AND VALVE SPRINGS 258
- GENERATOR 268
- PICKUP COIL 272
- EAS00274 278
- EAS00277 280
- EAS00280 280
- EAS00281 281
- EAS00284 281
- EAS00285 281
- EAS00286 282
- EAS00287 282
- EAS00348 282
- EAS00299 283
- SHIFT SHAFT 285
- 22 Nm (2.2m · kg, 16 ft · lb) 286
- OIL PAN AND OIL PUMP 287
- CRANKCASE 294
- 20 Nm (2.0 m 300
- Ib) + 120˚ 300
- CONNECTING RODS AND PISTONS 301
- CRANKSHAFT 312
- TRANSMISSION 317
- RADIATOR 327
- OIL COOLER 330
- THERMOSTAT 332
- 10 Nm (1.0 m 337
- WATER PUMP 339
- Check and repair 346
- 3.75 ~ 4.25 V 355
- Atmospheric pressure sensor 361
- Speed sensor output voltage 365
- When sensor is on 365
- DC 4.8 V or more 365
- When sensor is off 365
- DC 0.6 V or less 365
- THROTTLE BODIES 370
- AIR INDUCTION SYSTEM 378
- ELECTRICAL COMPONENTS 383
- CHECKING SWITCH CONTINUITY 384
- CHECKING THE SWITCHES 385
- CHECKING THE BULBS AND 386
- BULB SOCKETS 386
- IGNITION SYSTEM 389
- ELECTRIC STARTING SYSTEM 394
- 5 Nm (0.5 m 400
- 5 Nm (0.5 m · kg, 3.6 ft· lb) 402
- CHARGING SYSTEM 403
- LIGHTING SYSTEM 406
- SIGNALING SYSTEM 413
- FUEL PUMP SYSTEM 426
- STARTING FAILURES/ 432
- INCORRECT ENGINE IDLING SPEED 432
- EAS00848 433
- EAS00850 433
- EAS00851 433
- EAS00855 434
- EAS00856 434
- EAS00857 434
- FAULTY FRONT FORK LEGS/ 435
- UNSTABLE HANDLING 435
- FAULTY FRONT FORK LEGS 435
- EAS00866 436
- YZF-R1P/YZF-R1PC 438
- WIRING DIAGRAM 438
- YAMAHA MOTOR CO., LTD 439
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