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Title: High Byte Low Byte MAF table Post by: tightmopedman9 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?
Title: Re: High Byte Low Byte MAF table Post by: tightmopedman9 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! Title: Re: High Byte Low Byte MAF table Post by: krazydbiker 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?
Title: Re: High Byte Low Byte MAF table Post by: 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? Title: Re: High Byte Low Byte MAF table Post by: maZer.GTi on November 01, 2013, 03:07:58 PM 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. |