High Byte Low Byte MAF table

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tightmopedman9

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	High Byte Low Byte MAF table « on: October 17, 2013, 06:09:53 PM »

Motronic 4.4 (VOLVO) stores the MAF to voltage table as a high/low byte table. I've installed a larger MAF and scaled the old values by the increase in cross sectional area. This gave me a poor approximation that I would like to improve upon. Unfortunately, I had to do the calculations and enter the values by hand, something I'm not interested in doing 20 or more times. Other than writing a program in C, Visual Basic or MatLab is there an easier way to do this?


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tightmopedman9

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	Re: High Byte Low Byte MAF table « Reply #1 on: October 20, 2013, 06:19:09 PM »

So I figured this out with just some good 'ole excel.

I calculated my MAF table, then converted to hex with HEX2BIN(A1), from there I added the appropriate amount of leading zeros with CONCATENATE("0000",A2). I then formatted the cells into text and broke the string into high and low bytes with LEFT(A2,2) and RIGHT(A2,2). From there I could just copy and paste it into my hex editor. YEA!


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krazydbiker

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	Re: High Byte Low Byte MAF table « Reply #2 on: October 27, 2013, 06:08:58 PM »

i was reading on your progress on volvospeed, good stuff, you did a ton of work on figuring out how to get those maf sizes to work, i take it those lean spots are gone?


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littco

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	Re: High Byte Low Byte MAF table « Reply #3 on: October 28, 2013, 01:52:56 AM »

Would it not be easier to use tuner pro?

Create a new table with the axis and table valves from the map, then just modify the table according to you needs?


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maZer.GTi

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	Re: High Byte Low Byte MAF table « Reply #4 on: November 01, 2013, 03:07:58 PM »

Quote from: littco on October 28, 2013, 01:52:56 AM

Would it not be easier to use tuner pro?

Create a new table with the axis and table valves from the map, then just modify the table according to you needs?

If you have some wishes i can insert some stuff you need into mafadjust tool.


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