Arkana hybrid engine issues

Wow, that sounds frustrating! A dirty injection nozzle, huh? Could be. Are you noticing any black smoke or unusual smells? Have you checked your spark plugs recently? They could be contributing to the poor idling and starting. Maybe try an injector cleaner additive to your fuel tank before tearing anything apart? Just a thought!

No black smoke, but there is a slight fuel smell sometimes. I haven't checked the spark plugs yet, that's a good point. As for the cleaner, is it really worth it? Is there any reliable way to tell if it is actually working and not just snake oil?

Yeah, some injector cleaners are questionable. But with those symptoms: poor start, higher fuel use, less power, rough idle, and stalling? It does sound like fuel delivery. The smell you noticed even more so. If the cleaner doesn't help, you may need to take it to a shop to check your injectors and have them cleaned or even replaced professionally. Cost me 515€ to have the valve replaced!

Thanks for the advice! I'll try the injector cleaner first and check the spark plugs. If that doesn't sort it, a visit to the workshop seems inevitable to fix the clogging. Hopefully that will solve it, otherwise it's getting very expensive!