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Author Topic: Using a MAF (MASS AIR FLOW) with VEMS  (Read 6550 times)

Offline AVP

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Using a MAF (MASS AIR FLOW) with VEMS
« on: March 29, 2011, 09:49:28 pm »
Can someone give me a rough guide as to how i can connect a MASS AIR FLOW to VEMS that it can get signal and reading from it?
preferably one with a hot film such as one from an RS4 (car is an audi I5) .

the idea is to see if the use of a MAF could make vems readings even more precise. If it is too difficult ill probably leave it be, but i was just wondering...
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Offline gunni

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Re: Using a MAF (MASS AIR FLOW) with VEMS
« Reply #1 on: March 29, 2011, 09:54:14 pm »
You can connect it to any of the analog channels.

what readings are  you wanting more precise?
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Offline AVP

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Re: Using a MAF (MASS AIR FLOW) with VEMS
« Reply #2 on: March 29, 2011, 10:15:39 pm »
i wanted to compare how lamda is modified on cruise depending on airflow actually.

However i know that MAFs need to have some calibration depending on their size. how is that done?
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Offline gunni

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Re: Using a MAF (MASS AIR FLOW) with VEMS
« Reply #3 on: March 30, 2011, 08:50:24 am »
They are fitted to a flow meter that can flow more then the HFM can measure as maximum.
then they are metered at as many data points as possible and a curve created.
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Offline AVP

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Re: Using a MAF (MASS AIR FLOW) with VEMS
« Reply #4 on: March 30, 2011, 08:58:08 am »
Does this require special equipment to do? Or has anyone already done it?
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