EMS 321 Scania Post injection ontime too short, cylinder 2.

EMS Engine Management System · Scania

Code 321 (decimal). Some diagnostic tools show it in hexadecimal as 000141.

In short

The error is detected when the post injection ontime, for either post1 or post2, has been consequtively too short for a period of time.

Applies to: EMS10

What does Scania EMS fault code 321 mean?

What causes Scania DTC 321?

What are the symptoms?

How to fix Scania EMS fault code 321?

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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.

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