matthiasweiss1

S90 Diesel Fuel Consumption and Starting Issues

My 2016 Volvo S90 diesel has 227690 km and I've noticed fuel consumption increasing, plus it's getting hard to start. Diagnostics point to the throttle valve. Could it be the accelerator pedal module?

A 2016 Volvo S90 diesel with 227,690 km is experiencing increased fuel consumption and difficulty starting. Diagnostics initially pointed to the throttle valve as a potential cause. Further inspection by a mechanic confirmed both a defective throttle valve and a faulty accelerator pedal module, which were repaired for 205€.

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4 comment(s)

I had similar symptoms with my Opel Insignia, but it was the petrol version. Higher fuel consumption and poor starting were my main issues. Have you checked the throttle position sensor readings?

Thanks. What specific throttle position sensor values or ranges should I look for to confirm a problem?

My readings were all over the place. I couldn't fix it myself and took it to a workshop. They said the throttle body was faulty. Maybe get yours checked out professionally.

I had a mechanic inspect it and they confirmed a defective throttle valve and a faulty accelerator pedal module. The repair was 205€, including parts and labor. Thanks again.

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VOLVO

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S90