1.9-ltr. TDI Engine with Pump Injection System - Volkswagen ...

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Pump injection systemGeneral informationWhat is a pump injector?A pump injector is, as the name already implies,an injection pump combined with a control unitand an injector.Each cylinder of the engine has a pump injector.This means that there is no longer any need for ahigh-pressure line or a distributor injection pump.Just like a distributor injection pump withinjectors, the pump injection system has thefollowing tasks:• Generating the high injection pressuresrequired• Injecting fuel in the correct quantity and atthe correct point in timePressuregeneratingpumpInjectorControl unit(solenoid valve)209_126
Fitting locationThe pump injector is directlyintegrated in the cylinder head.209_86FixingIt is attached to the cylinder head by a clamping block.It is important to ensure that the pump injector isinstalled in the correct position.If the pump injector is not perpendicular to thecylinder head, the fastening bolt can comeundone. The pump injector and/or the cylinderhead may be damaged as a result. Pleaseobserve the instructions given in the WorkshopManual.209_877
Page 3 and 4: Table of contentsIntroduction .....
Page 5: SpecificationsEngine code:Type:Stro
Page 9 and 10: Drive mechanismThe camshaft has fou
Page 11 and 12: The injection cycleThe high-pressur
Page 13 and 14: The pre-injection cycle commencesIn
Page 15 and 16: The injection cycleThe main injecti
Page 17 and 18: Fuel return in the pump injectorThe
Page 19 and 20: The bypassThe pressure limiting val
Page 21 and 22: This is how it works:The fuel pump
Page 23 and 24: Without a distributor pipe, the fue
Page 25 and 26: The fuel cooling circuitThe fuel re
Page 27 and 28: Glow plugs Q6Control unitfor diesel
Page 29 and 30: Cylinder recognition when starting
Page 31 and 32: FunctionQuick start recognitionTo a
Page 33 and 34: The following sensors have previous
Page 35 and 36: Intake manifold pressure sender G71
Page 37 and 38: Brake light switch F andbrake pedal
Page 39 and 40: ActuatorsInjector solenoid valvesN2
Page 41 and 42: When the valve is closed, the curre
Page 43 and 44: Fuel cooling relay J445The fuel coo
Page 45 and 46: Warning lamp for glow period K29The
Page 47 and 48: Glow plug systemGlow plug systemThe
Page 49 and 50: 3015J52SSSSE45A/+B D F GFF47F36CESG
Page 51 and 52: Engine mechanicalsTo make allowance
Page 53 and 54: This is how it works:During the inj
Page 55 and 56: Special toolsDesignation Tool UseT
Page 57 and 58:
Test your knowledge1.Identify the c
Page 59 and 60:
NotesSolutions:1. For a list of com
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1.9-ltr. TDI Engine with Pump Injection System - Volkswagen ...

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