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Parts I and II intake pipe - assembly overview > < Fitting hose connections with plug-in connectors

Leon Mk2

Injection system
Injection system
→ Chapter „Parts I and II intake pipe - assembly overview“
→ Chapter „Assembly overview - part I, intake manifold “
→ Chapter „Assembly overview - part II, intake manifold“
→ Chapter „Fuel rail with injectors - Assembly overview“
→ Chapter „Assembly overview - air filter“
→ Chapter „Replace the air filter element “
→ Chapter „Removing and installing air filter housing“
→ Chapter „Regulating flap control unit -J808- and throttle control unit -J338-: Removing and installing.“
→ Chapter „Cleaning throttle valve module -J338-“
→ Chapter „High-pressure pump - exploded view“
→ Chapter „Checking fuel pressure in high-pressure section“
→ Chapter „Removing and installing high-pressure pump“
→ Chapter „Removing and installing injectors“
→ Chapter „Renewing Teflon seal and support washer on injector“
→ Chapter „Safety precautions“
→ Chapter „Rules for cleanliness“
→ Chapter „Technical data“
General notes on injection
t  The engine control unit -J623- is equipped with self-diagnosis. Before carrying out repairs and fault finding, the fault memory must be interrogated. Also the vacuum hoses and connections must be checked (unmetered air).
t  Fuel hoses in engine compartment must only be secured with spring-type clips. The use of clamp or screw-type clips is not permissible.
t  For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary
t  Do not use sealants containing silicone. Particles of silicone drawn into the engine, will not be burnt in the engine and damage the Lambda probe.
t  The vehicles are fitted with a crash/fuel shut-off system. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay. At the same time, this system also improves the engine's starting performance. When the door is opened, the fuel pump is activated for 2 seconds in order to build up pressure in the fuel system.
   

Parts I and II intake pipe - assembly overview > < Fitting hose connections with plug-in connectors