Scania fault code 8334
Code 8334 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Reductant doser
The pressure in the SCR system does not reduce as expected when the valve is opened.
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AMS
Reductant pump, break in the circuit
EEC control unit E67 indicates a break in the cable for the control signal to reductant pump V183.
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