Question about 2000 Volvo S40

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Low miles per gallon

I have a s40 se 2ltre automatic the problem is that the mpg as dropped from approx 28.5 mpg to 21.5 mpg i,ve had it serviced but it has made no differance and all my tests are within the peramaters

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Hi the first thing you might want to look at is low tyre pressures or a fuel leak? After eliminating those i would look at the MAF or mass air flow meter. If you unplug your air flow meter with a hot engine and drive it there should be a large difference in performance, if there isnt then replace the MAF as it is faulty.

Posted on Feb 08, 2009

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