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Holden Captiva: Rotten smell and high fuel consumption

I HAVE had problems with my Holden Captiva LX 3.2 petrol model from the day I bought it in March last year. The fuel consumption is 17 litres for 100km, but there's also a rotten egg smell, which is a major concern. The dealership has reset the computer twice without success. Now I am at my wits' end. Can someone shed some light on the problem?

THE rotten egg smell and the high fuel consumption are most likely connected. A smell like that was once a sign of a problem with the catalytic converter, and the high fuel consumption suggests there is a problem with the engine system somewhere. It could be a faulty oxygen sensor making the engine run rich, giving you the high fuel consumption. Have your dealer check it out again, and more thoroughly.

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