Scania EMS DTC 8334 Reductant doser

EMS Engine Management System · Scania

Code 8334 (decimal). Some diagnostic tools show it in hexadecimal as 208E.

In short

The pressure in the SCR system does not reduce as expected when the valve is opened.

Applies to: EMS S8

What does Scania EMS fault code 8334 mean?

What causes Scania DTC 8334?

How does the system react?

How to fix Scania EMS fault code 8334?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

Code 8334 in other Scania systems