ENGINE FUEL AND EMISSION CONTROL SYSTEM 6C-1
SECTION 6C
ENGINE FUEL AND
EMISSION CONTROL SYSTEM
CONTENT
GENERAL DESCRIPTION ...................................................................................................................................... 6C-3
- Fuel system
(Mechanical injection engine)(Mechanical injection engine)
(Mechanical injection engine)(Mechanical injection engine)
(Mechanical injection engine) ............................................................................. 6C-3
- Fuel system
(Common rail engine)(Common rail engine)
(Common rail engine)(Common rail engine)
(Common rail engine) ................................................................................................ 6C-4
- Air intake system ...................................................................................................................................... 6C-5
ENGINE EMISSIONS ............................................................................................................................................ 6C- 6
• Exhaust gases ............................................................................................................................... 6C- 6
• Exhaust fumes ............................................................................................................................... 6C- 6
• Acoustic emissions ........................................................................................................................ 6C- 6
FUEL SYSTEM ..................................................................................................................................................... 6C- 7
- Cleaning tips and caution during repair .............................................................................................. 6C- 7
• Cleaning and warnings before repair ................................................................................................ 6C- 7
• Cleaning and warnings during repai ................................................................................................. 6C- 7
• Cautions for the injection equipment cleaning ................................................................................. 6C- 7
ON-VEHICLE SERVICE .............................................................................................................................. 6C- 8
- Fuel filter................................................................................................................................................. 6C- 8
• Bleeding air of fuel system ............................................................................................................. 6C- 8
• Water and residue cleaning from fuel filter ...................................................................................... 6C- 9
• Fuel filter replacing ......................................................................................................................... 6C- 9
- Fuel tank ................................................................................................................................................. 6C-10
• Fuel tank removal and intallation ..................................................................................................... 6C-10
• Fuel tank pressure control valve ....................................................................................................... 6C-11
• Fuel level gauge.............................................................................................................................. 6C-12
- Thermostarter ......................................................................................................................................... 6C-13
• Thermostarter electro-valve ............................................................................................................. 6C-13
• Thermostarter spark plug ................................................................................................................ 6C-13
• Thermostarter inspection ................................................................................................................ 6C-14
- HIGH PRESS. INJECTION PUMP AND INJECTORS FUEL (
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y mechanical injection engines) .. 6C-15
• High pressure fuel pump removal .................................................................................................... 6C-15
• Injectors and injection pipes ........................................................................................................... 6C-15
• Bench test values for rotary pump................................................................................................... 6C-16
• Injectors adjustment ....................................................................................................................... 6C-17
• Automatic device for the advance injection for cold starting (KSB) .................................................. 6C-18
HIGH PRESSURE ELECTRONIC INJECTION SYSTEM (COMMON RAIL MS 6.3) .............................................. 6C-19
- Generalities ............................................................................................................................................ 6C-19
• Common Rail electronic injection system components ................................................................... 6C-20
• Electronic control system ............................................................................................................... 6C-21
- System fuctions ...................................................................................................................................... 6C-22
- General description ............................................................................................................................... 6C-25
- Precaution in diagnosing trouble (
Common RailCommon Rail
Common RailCommon Rail
Common Rail) ........................................................................... 6C-26
- Fuel delivery system
(common rail)(common rail)
(common rail)(common rail)
(common rail)................................................................................................ 6C-27
• Prefilter ........................................................................................................................................... 6C-27
• Electric feed pump.......................................................................................................................... 6C-28
• Main filter ....................................................................................................................................... 6C-29
• High pressure pump ....................................................................................................................... 6C-30
• Pressure regulator valve .................................................................................................................. 6C-31
• Hydraulic accumulator (Rail) ........................................................................................................... 6C-32
• High pressure pipes ........................................................................................................................ 6C-33
- Electro-injectors ...................................................................................................................................... 6C-34
- Electric/electronic components ............................................................................................................. 6C-37
• Electronic control unit MS 6.3 ........................................................................................................ 6C-37
• Fuel pressure sensor ...................................................................................................................... 6C-41
• Engine speed sensor ...................................................................................................................... 6C-41
• Camshaft speed and phase sensor ................................................................................................. 6C-42
6C
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