TABLE OF CONTENTS 12/05 Throttle Position Sensor ........................................................ 12-21 Repair.......................................................................................... 12-22 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 Troubleshooting ................................................................................ 13-1 Safety Precautions ........................................................................ 13-3 Introduction....................................................................................
13-3 Engine Faults and Torque Limitations........................................... 13-3 Torque Limitation for Failed Sensors Mode............................. 13-3 Torque Limitation for Smoke Limitation Mode......................... 13-3 Torque Limitation for Overheat Protection Mode..................... 13-5 Troubleshooting Chart................................................................... 13-6 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 Trouble Codes............................................................................. 13-10 Working Procedure................................................................ 13-10 Diagnostic Trouble Codes ..................................................... 13-10 After Troubleshooting or Repair .................................................. 13-14 © 2009 Yanmar Marine International BY Service Manual ix