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Checking quantity injected, engine code BGU > < Checking injectors for leaks, engine code BGU

Golf Mk5

Checking injectors for leaks, engine codes BSE, BSF, CCSA, CMXA
Checking injectors for leaks, engine codes BSE, BSF, CCSA, CMXA
  WARNING
The fuel supply line is under pressure! Wear eye protection and protective clothing to avoid possible injury and skin contact. Before loosening hose connections, wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection.
l  The fuel pressure must be in order, checking → Chapter.
–  Remove lower part of intake manifold → Chapter.
–  Pull connectors off injectors.
   
–  Pull fuel rail with injectors off intake manifold and lay on a clean cloth.
Fuel line remains connected to fuel rail.
–  Remove seat bench (Golf Plus: rear right seat) → General body repairs, interior; Rep. Gr.72.
  A24-0335
–  Remove cover from fuel pump unit.
  A20-1206
–  First check that the connector -arrow- is fitted securely by pulling the connector without pressing the catch. The connector can cause a fault if it has not been fitted correctly.
–  Now pull off connector.
–  Check the contacts on the connector and on the fuel delivery unit for damage.
  N20-10623
–  Connect test instrument adapter/DSO (5-pin) -VAS 5565- to connector and fuel pump unit.
–  Connect remote control for V.A.G 1348 -V.A.G 1348/3A- to test instrument adapter/DSO (5-pin) -VAS 5565- and to battery positive (+).
  Note
This step serves only to have the fuel pump running when the engine is not running.
–  Operate remove control -V.A.G 1348/3A- and check injectors for leaks (visual check). No more than 1 to 2 drops per minute must escape from each valve when fuel pump is running.
If the fuel loss is greater:
–  Renew leaking injector → Chapter.
  Note
t  After replacing components of injection system, erase learnt values in engine control unit → vehicle diagnosis tester “Guided fault finding”.
t  Always renew seals.
  N20-10422

Checking quantity injected, engine code BGU > < Checking injectors for leaks, engine code BGU