
Fuel System 129 Diesel Control System
Fuel Pressure Control Valve (High pressure pump side)
Function And Operation Principle
The Fuel Pressure Regulator Valve and the Rail Pressure Regulator Valve are installed on high pressure pump and
common rail (bank 2) respectively. These valves control fuel inlet (feed) from fuel tank via fuel filter and outlet
(return) to fuel tank of high pressure fuel circuit.
This system is called "Dual Fuel Pressure Control System" and can precisely and quickly control the fuel pressure in
accordance with various engine conditions by controlling the fuel inlet and outlet simultaneously.
Summary of Contents for S220P
Page 3: ...Engine Mechanical System 2 General Information General Information Specifications ...
Page 4: ...Engine Mechanical System 3 General Information Specifications ...
Page 5: ...Engine Mechanical System 4 General Information Specifications ...
Page 10: ...Engine Mechanical System 9 Cooling System Special Service Tools ...
Page 11: ...Engine Mechanical System 10 Cooling System Special Service Tools ...
Page 18: ...Engine Mechanical System 17 Cooling System ...
Page 19: ...Engine Mechanical System 18 Cooling System Thermostat ...
Page 55: ...Engine Mechanical System 54 Lubrication System ...
Page 73: ...Engine Electrical System 72 General Information Troubleshooting Charging system ...
Page 74: ...Engine Electrical System 73 General Information Starting system Special service tools ...
Page 75: ...Engine Electrical System 74 Charging System Charging system Alternator ...
Page 80: ...Engine Electrical System 79 Starting System Components ...
Page 91: ...Fuel System 90 General Information Special Service Tools ...
Page 112: ...Fuel System 111 Diesel Control System EOI Engine Operating Indicator System Circuit Diagram 1 ...
Page 117: ...Fuel System 116 Diesel Control System Specification Circuit Diagram ...