ameliemystic1
S90 Hybrid Rough Start Reduced Power
Summary of the thread
A 2022 Volvo S90 hybrid was experiencing rough starts, increased fuel consumption, reduced engine power, stalling at idle, and uneven idling. These issues were suspected to be caused by a defective injection nozzle. After visiting a workshop, the problem was confirmed, and replacing the injection nozzle resolved the issues, restoring the car's performance.
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4 comment(s)
ameliemystic1 (community.author)
No unusual smells or smoke, but I think I've noticed a slight misfire sometimes. How did you confirm it was the injection valves? What did you do to fix it?
mariestorm4
I didn't confirm it myself, a mechanic diagnosed it. Given the symptoms, he suspected dirty injection valves and suggested a cleaning or replacement. In the end he replaced it. I advise you to visit a workshop.
ameliemystic1 (community.author)
Thanks for the advice! Took it to the shop, and you were right – defective injection nozzle! Replaced it, cost me 515€. Runs like new now.
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VOLVO
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S90
mariestorm4
I also have an S90 hybrid, and your symptoms sound familiar. Have you noticed any unusual smells or seen any smoke? Maybe a misfire? I had similar issues, and it turned out to be dirty injection valves, possibly from clogging. Worth checking!