Yanmar BY Series Service Manual page 9

12/05
Repair.......................................................................................... 12-22
Troubleshooting ................................................................................ 13-1
Safety Precautions ........................................................................ 13-3
Introduction.................................................................................... 13-3
Engine Faults and Torque Limitations........................................... 13-3
Troubleshooting Chart................................................................... 13-6
Trouble Codes............................................................................. 13-10
After Troubleshooting or Repair .................................................. 13-14
BY Service Manual
Throttle Position Sensor ........................................................ 12-21
Replace Engine Control Unit (ECU) ...................................... 12-22
Replace Coolant Temperature Sensor .................................. 12-22
Replace Charge Air Pressure Sensor ................................... 12-23
Replace Charge Air Temperature Sensor ............................. 12-23
Replace Crankshaft Sensor................................................... 12-24
Replace Camshaft Sensor..................................................... 12-24
Replace High-Pressure Fuel Regulator................................. 12-25
Replace High-Pressure Fuel Rail Pressure Sensor .............. 12-26
Replace Fuel Temperature Sensor ....................................... 12-26
Replace Fuel Volume Regulator............................................ 12-27
Replace Oil Pressure Sensor ................................................ 12-27
Torque Limitation for Failed Sensors Mode............................. 13-3
Torque Limitation for Smoke Limitation Mode ......................... 13-3
Torque Limitation for Overheat Protection Mode..................... 13-5
Starting Trouble ....................................................................... 13-6
Exhaust Color .......................................................................... 13-6
Vibration - Drive Disengaged................................................... 13-7
Vibration - Drive Engaged ....................................................... 13-7
Engine Knocks......................................................................... 13-8
Low Power Output ................................................................... 13-8
Engine Overheat...................................................................... 13-8
Engine Runs Cold.................................................................... 13-9
Coolant Loss............................................................................ 13-9
Helm Panel Display ................................................................. 13-9
Working Procedure................................................................ 13-10
Diagnostic Trouble Codes ..................................................... 13-10
© 2009 Yanmar Marine International
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