SpaceTourer cylinder pressure fluctuation

Fluctuating cylinder pressure can stem from various sources. Have you checked the error codes? Is the pressure loss consistent across all cylinders or isolated to one?

I've checked the error codes, and they point to cylinder pressure fluctuation but don't indicate a specific cause. How would I find out if the pressure loss is on one specific cylinder?

The error codes may indicate a consequential error. Since the root cause is not obvious, and you don't have information on one specific cylinder you should visit a workshop.

Took it to the workshop, and the cylinder pressure fluctuation was a consequential error. A faulty sensor elsewhere in the engine management system was throwing everything off, and the repair was free. Thanks again!