Volkswagen CJDA Workshop Manual page 437

If the specifications are again not attained:
– If necessary, renew exhaust gas pressure sensor 1 -G450-
⇒ P age
427, Assembly overview - diesel particulate filter.
3.4 Reading injector delivery calibration
values/injector voltage calibration val-
ues, and storing them in engine control
unit
Note
This function can be used to adapt new injector delivery calibra-
tion values/injector voltage calibration values. The 7-digit injec-
tor delivery calibration values/injector voltage calibration values
are printed on each injector.
Reading injector delivery calibration values/injector voltage
calibration values
– Connect vehicle diagnostic tester, and select engine control
⇒ P age 23
unit.
– Select diagnosis function "011-Read measured value block".
The ignition must be switched on for this purpose.
– Select diagnosis function "014-Long adaptation". The ignition
must be switched on for this purpose.
– Select respective "channel numbers" for injectors
-N30...N33-:
● "Channel number 71" for injector 1 -N30-
● "Channel number 72" for injector 2 -N31-
● "Channel number 73" for injector 3 -N32-
● "Channel number 74" for injector 4 -N33-
– Compare the displayed 7-digit ASCII value with the value
printed on the respective injector.
– If the values do not match, adapt the injector delivery cali-
bration values/injector voltage calibration values for the re-
spective injector.
Store injector delivery calibration values/injector voltage
calibration values in engine control unit.
Note
If an injector or the engine control unit is to be renewed, the 7-
digit injector delivery calibration values/injector voltage calibra-
tion values printed on the injectors must be stored in the engine
control unit.
– Select respective "channel numbers" for injectors
-N30...N33-:
● "Channel number 71" for injector 1 -N30-
● "Channel number 72" for injector 2 -N31-
● "Channel number 73" for injector 3 -N32-
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Industriemotoren - Industrial Engines 2009 ▶
3 Engine control unit -J623-
3
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