skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Analysis of display groups 022/023, display fields 3 and 4 - ignition angle retardation > < Display group 022, ignition - knock control
Display group 023, ignition - knock control
   
Display group 023, ignition - knock control
l  Normal driving
 
Read measured value block 23 →← Read-out on display  
xxxx rpmxxx.x %xx.x °KWxx.x °KW   
1234← Display fieldsSpecification
Analysis
    Ignition angle retarded in cylinder 4 by knock control0...15.0 °CA
0.0...12.0 °CA 1)
→ Chapter
   Ignition angle relief cylinder 3
through knock control
0...15.0 °CA
0.0...12.0 °CA 1)
→ Chapter
  Engine load0...100 %
 Engine speed730...6800 rpm

1) For engines with identification characters AZH, AZJ.
  Note
t  Knock control active from an engine load of more than 40 %.
t  If an engine load of 40% is exceeded, the current retardation values of the ignition angle are displayed. If the engine load was not reached, the values last used are displayed.
t  If knocking can be heard without any retardation of the ignition angle detectable, increase engine speed for 5 seconds to more than 3500 rpm in order to activate the knock sensor fault detection (for self-diagnosis).
   

Analysis of display groups 022/023, display fields 3 and 4 - ignition angle retardation > < Display group 022, ignition - knock control