Version with pressure sensor
Install a pressure gauge between fuel filter and ring line.
With engine idling the delivery pressure must be 2.0 ± 0.2 kp/cm²
(28 ± 2.8 psi).
If other than specified refer to 13 51 504, adjusting pressure regulator,
or 13 60 000, troubleshooting fuel injection system.


Siehe auch 13 51 504
Siehe auch 13 60 000
31029001 - click to zoom
 
Version with air flow sensor
Checking fuel pump with engine stopped:
Disconnect plugs at air flow sensor.
Connect wire 36 with 39 in plug.
Turn on ignition.
A Soft clicking confirms that the pump relay is good.
A soft humming noise means that the fuel pump is running.
If no fuel is delivered in spite of this, the high pressure and/or
check valve in the fuel pump is defective.



31029002 - click to zoom