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      12-16-2012, 04:45 PM   #1
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Drives: E90 330D M Sport
Join Date: Dec 2008
Location: Belfast

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330d Air mass readings

Hi all

My 330d fuel economy has deteriorated, I have recently changed the egr and main stats and these helped a little and certainly improved the running temperature.

I also recent replaced the air filter which made a good difference to the drivability of the car.

So I bought and installed appropriate cable and INPA and my air mass reading is 1650 well outside the recommended range.

There was a number of codes also logged, including the air flow meter input air sensor

My question is what could cause this, is it likely to be a faulty maf?

Or is there out easier to check options than having to strip out half the engine to get to the maf!!