Checking Injector Flow Capacity

WARNING
Work only in a well-ventilated area! If approved equipment for the extraction of fuel vapours is available, be sure to use it.
Wear suitable gloves! Prolonged contact with fuel can cause skin irritation or dermatitis.
Keep a class BE fire extinguisher close at hand! Beware of sparks caused by short circuits and when connecting and disconnecting leads in electrical circuits.
Smoking prohibited!


1 Remove fuel rail with injectors, see Fuel rail with injectors.







2 Start the fuel pump by attaching a jumper lead between fuses 4 and 32.
Check that there are no leaking injectors.
3 Place each injector in turn over a measuring glass and connect the injector to be checked to battery voltage using cables 86 11 410 and 86 11 345.







Activate the injector for exactly 30 seconds and then check that the amount of fuel in the measuring glass is at least 107 and at most 115 ml.
4 Change any faulty injectors. Be sure that you connect injector connectors to the right injector.

Checking fuel pressure
For checking of fuel pressure/fuel pressure regulator, see Checking fuel pressure regulator.