Eseries high fuel consumption and stalling

I'm experiencing some trouble with my 2008 Ford Eseries, gasoline engine. Lately, I've noticed higher fuel consumption, the engine stalls at idle sometimes, and the check engine light is constantly on. Plus, there's a noticeable puff of smoke when accelerating. I suspect it might be a defective mass air flow meter. Does this sound plausible?

4 comment(s)

That definitely sounds like a potential MAF sensor issue. I had similar symptoms with my older Audi A4 - increased fuel consumption, rough idling, and the check engine light. Have you checked the air intake for any obvious obstructions?

Thanks for the quick reply! I haven't checked the air intake specifically. Where exactly should I be looking for obstructions, and could a dirty air filter contribute to this?

On my Audi, the MAF sensor was right after the air filter box. A dirty filter restricts airflow, which could impact the MAF sensor readings, potentially causing the issues you describe. While it might be worth a shot cleaning or replacing the filter, your symptoms sound more like a failing sensor, especially with the smoke. Probably best to get it checked by a workshop.

Took your advice and had the Ford checked out. Turns out it was indeed the mass air flow sensor. Replacement cost me 365€. Thanks for confirming my suspicions!

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