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finn_fox2

Renault Master excessive fuel consumption

My 2019 Renault Master diesel has shocking fuel consumption and starts reluctantly, especially when cold. Mileage is 107377 km. I suspect the throttle valve. Could a defective accelerator pedal module cause these issues?

Summary of the thread

A 2019 Renault Master diesel exhibited excessive fuel consumption and reluctant starting, particularly in cold conditions. The initial suspicion was a defective throttle valve, but it was suggested that the throttle position sensor might be faulty, affecting the fuel mixture and starting. Upon professional diagnosis, the issue was confirmed to be a defective accelerator pedal module, which was replaced, resolving the problem.

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4 comment(s)

antoniastern2

I had similar symptoms with my Master. Have you checked the throttle position sensor? That could be faulty and affect the fuel mixture and starting.

finn_fox2 (community.author)

Interesting. Where is this sensor located, and is it a straightforward replacement? I wouldn't call myself an expert.

antoniastern2

On my engine, it was near the throttle body. If you're seeing higher fuel consumption and starting issues, it's best to have a workshop take a look. They can properly diagnose it.

finn_fox2 (community.author)

Thank you for the advice! You were spot on; the workshop confirmed that the accelerator pedal module was defective, and the repair set me back 205€. Now it is running like a charm again.

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RENAULT

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MASTER