Questions tagged [maf]

Anything related to MAF (Mass Air Flow) sensors.

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3answers
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Calculating MPG from MAP sensor (or converting MAP data to MAF data)

My 2002 Honda Accord V6 has a Manifold Absolute Pressure sensor (MAP). I understand that this sensor gives out information in pressure units (psi or equivalent). After doing a bit of research, I ...
12
votes
1answer
589 views

How is it advantageous for fuel management to detect negative mass air flow?

Here is the flow-voltage mapping for the Bosch sensor utilized by my E39 M5. I find it curious that readings below 0.9 V correspond to negative flows. Questions Is it possible that air can flow the ...
3
votes
1answer
1k views

How can one calculate volumetric efficiency without a MAF sensor?

I am completely new in the field of OBD2 sensor; I am looking for a method (or a formula) to calculate Volumetric Efficiency of: Diesel Car Petrol Car which do not have a MAF sensor. Can anyone help ...