What's a normal MAF reading?

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Author Message   Carl Muckenhirn (Carlmuck) Posted on Friday, June 07, 2002 - 05:18 pm:    All, Can anyone give me a number for a "normal" MAF reading? My obd reader lets me monitor this (with a bunch of other stuff) and the reading doesn't make sense to me. At 2000 RPM under normal load (20-30% throttle) i'm reading 0.5 gram/sec (or 0.04 lb/min). This all seems way to low. The density of air is ~1.16 g/liter at 32C (90F). At 2000 RPM (33 rev/sec) the 4.0L engine consumes about 66L of air (2L /rev). So I should expect readings in the 70 gram/sec? So ... is my MAF dead/dying, or are the readings only the amount (mass) of air actually entering the MAF's sensor tube? Any info? thanx, carl.