audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing injectors > < Injectors with clamping piece - exploded view
Performing adaption of injectors
Performing adaption of injectors
t  The „Adaption for injectors“ function serves to correct the injection rates for each cylinder of a common rail system individually across the entire operating range.
   
t  The 6-digit adaption value -b- (details in illustration are only an example) is marked separately on each injector. The values may consist of letters and/or numbers.
t  The 6-digit adaption value (example) is marked on each injector. It may consist of letters and/or numbers (ASCII code).
a - Injector number
b - Check sum
c - Part number
d - Type approval number
e - Data matrix code
When a new injector is installed, the adaption value must be written into the engine control unit.
When a new engine control unit is installed, the „Adaption values for injectors“ must be written into the new control unit.
The adaption procedure is described in the „Guided Fault Finding“. (The procedure is also described under „Guided Functions“.) Use → Vehicle diagnostic tester
Also check that the values for the „Adaption for injectors“ for all other injectors are stored in the engine control unit. Do NOT attempt to re-enter these values if the correct values are already stored in the engine control unit.
  A23-10430

Removing and installing injectors > < Injectors with clamping piece - exploded view