Anyone know anything about hte MAF signal on a 2000 A4 1.8t?
01-18-2002, 10:32 AM
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HFM5 hot-film air-mass meter.....
and yes, it can measure reverse flow.
The book has a diagram, but basically, there are two temp strips, with a heated zone in between. The change in temp between the strips gives off the air mass, and it can tell which way the air flows, depending on which temp strip is warmer.
The book has a diagram, but basically, there are two temp strips, with a heated zone in between. The change in temp between the strips gives off the air mass, and it can tell which way the air flows, depending on which temp strip is warmer.
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