Lexus RC Stalling at Idle

My 2021 Lexus RC with a gasoline engine (222380 km) is showing a check engine light and stalling at idle, also engine power is reduced. I suspect fuel pressure regulator failure due to an error entry after fuel filter change. Has anyone experienced similar issues?

4 comment(s)

I had similar symptoms on my 2018 Volvo XC60. The check engine light, stalling, and power loss pointed towards a fuel system issue. Have you checked the fuel rail pressure sensor readings? A faulty fuel pressure regulator can definitely cause these problems, especially after a fuel filter replacement.

Fuel rail pressure sensor readings were within normal range. Was the fuel pressure regulator the root cause in your Volvo?

Yes, the fuel pressure regulator was indeed the culprit. The readings might appear normal initially, but the regulator's inability to maintain consistent pressure can lead to intermittent issues. Considering the error entry after the fuel filter change, it's highly probable. I would suggest consulting with a workshop.

Confirmed: Fuel pressure regulator defective. Repair cost 45€. Thanks for the advice.

Join the discussion now: