Scania fault code 4645
Code 4645 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Unit injector for cylinder 2
The control unit has detected that the solenoid valve in the unit injector has closed too early. Start of injection timing is earlier than expected.
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EEC Exhaust Emission Control
Fuel injection for exhaust gas aftertreatment
The air pressure is too high when the air control valve in the valve block for exhaust gas aftertreatment is open.
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