Scania EMS DTC 4492 Major leak upstream of the compressor or fault in the mass flow sensor

EMS Engine Management System · Scania

Code 4492 (decimal). Some diagnostic tools show it in hexadecimal as 00118C.

In short

The engine control unit calculates that more air is coming into the engine than what is measured by the mass flow sensor.

Applies to: EMS10

What does Scania EMS fault code 4492 mean?

What causes Scania DTC 4492?

How to fix Scania EMS fault code 4492?

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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.