LandCruiser check engine light exhaust smell

Hi, my 2010 Toyota LandCruiser (gasoline) has an issue. The check engine light comes on. I think the engine is running roughly, and there's a strong exhaust smell, like maybe it's leaking. Mileage is 26705 km. Any ideas?

4 comment(s)

Could be a few things. Is the exhaust pipe damaged? Any black smoke? A rough idle and exhaust smell might indicate a problem with the catalytic converter or a defective lambda sensor. Has the car been using more fuel than normal?

I don't see any obvious damage. Haven't noticed black smoke. More fuel... possibly. What does the lambda sensor do?

The lambda sensor monitors the exhaust gases; if it fails, the engine can run poorly, causing the symptoms you describe. An exhaust leak is also possible. However, given the symptoms and mileage, a defective lambda sensor seems plausible. I would advise bringing it to a workshop.

Thanks. Workshop confirmed it. Lambda sensor was defective, 375€ repair.

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