Volkswagen CJDA Workshop Manual page 416

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
– Then, read event memory of engine control unit, and clear
event memory if necessary
If specification is attained:
Checking wiring
– Check wiring of injector to be tested as follows:
– Using adapter cable -V.A.G 1598/39-1-, connect test box
-V.A.G 1598/42- to wiring harness of control unit
The engine control unit is not connected by this action.
– Check wiring between test box and connector for open cir-
cuit referring to current flow diagram.
◆ Injector 1 -N30-: contact 1 + socket 2
◆ Injector 1 -N30-: contact 2 + socket 17
◆ Injector 2 -N31-: contact 1 + socket 47
◆ Injector 2 -N31-: contact 2 + socket 32
◆ Injector 3 -N32-: contact 1 + socket 46
◆ Injector 3 -N32-: contact 2 + socket 31
◆ Injector 4 -N33-: contact 1 + socket 1
◆ Injector 4 -N33-: contact 2 + socket 16
● Cable resistance: max. 2.0 Ω.
– Additionally, check wiring for the following:
◆ Short to positive. Specification: ∞ Ω.
◆ Short to earth. Specification: ∞ Ω.
◆ Short to one another. Specification: ∞ Ω
If no fault in lines is detected:
– Renew the defective injector
– Store "injector delivery calibration values/injector voltage cal-
ibration values" and new injector in engine control unit
⇒ P age
421.
– Then, read event memory of engine control unit, and clear
event memory if necessary
2.5 Checking engine speed sender -G28-
Function
Engine speed sender -G28- is speed and reference mark send-
er. The engine will not start if there is no speed signal. If the
speed signal fails when the engine is running, it will cause the
engine to stall immediately.
400 Repair Group 23 - Mixture preparation - injection
⇒ P age
26, read event memory.
⇒ P age
⇒ P age
418.
⇒ P age
26, read event memory.
24.