Insignia engine stalling

Experiencing an intermittent check engine light and occasional stalling at idle with my 2012 Vauxhall Insignia diesel. It has 229743 km on the clock. Diagnostics point to a fuel tank ventilation system leak, possibly a defective activated charcoal filter. Anyone encountered a similar problem?

4 comment(s)

I had something similar with my Insignia. Check your EVAP system. It could be a system failure causing airflow issues. Is the purge valve working correctly?

When you say EVAP system, are you referring specifically to the purge valve, or is there a particular component I should inspect more closely? I am trying to avoid replacing parts unnecessarily.

It was definitely the EVAP system in my case, and the symptoms sound very similar. I'd suggest taking it to a workshop to get it checked professionally. Could save you money in the long run.

I appreciate your advice. I took it to a local mechanic, and it turned out to be a leak in the fuel tank ventilation system, likely due to a defective activated charcoal filter, just as the initial diagnostic suggested. The repair cost me 275€.

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