Abnormal high MAF reading - Cause?

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Posted to Technical Discussion Forum on 3/2/2020 9 Replies

Normal idle MAF readings should be about 15 kg/h for this engine.

Just for comparison readings of 2 cars I have at shop: Cayenne 4.8 MAF 17 kg/h 570 rpm BMW 750i 4.8 MAF 16.5 kg/h

This 540i idle MAF reading is 30 kg/h (!!!) at idle (600 rpm) Very rich mixt... Login to read more.

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Vehicle Data

1997 BMW 540i 4.4L

Engine	4.4 L
Trans	5-speed Automatic (Electronic)

Vehicle Data

1997 BMW 540i 4.4L

Engine	4.4 L
Trans	5-speed Automatic (Electronic)

9 Replies Received (View Replies)

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Vehicle Data

1997 BMW 540i 4.4L

Vehicle Data

1997 BMW 540i 4.4L