Smooth Running Control, Function - GF07.10-D-1011HD

ENGINES 651.955/956/957 in MODEL 906 

with CODE (XZ1) Model generation 1 

with CODE (MZ0) Blue EFFICIENCY 

Function requirement 

• Circuit 87M On
• Circuit 61 ON

General 

Smooth running control reduces any rough running in the engine RPM range from 750 to 2600 RPM.

Function sequence 

To do this the CDI control unit (N3/28) reads in the signal from the crankshaft sensor (L5/10) and evaluates it for uniformity.

If irregularities occur in the signal from the crankshaft sensor, the CDI control unit adjusts the injection duration by actuating the following injectors:

• Cylinder 1 injector (Y76/14)
• Cylinder 2 injector (Y76/15)
• Cylinder 3 injector (Y76/16)
• Cylinder 4 injector (Y76/17)

The fuel pressure in the rail and the injection time of fuel injectors produce the injection quantity.