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034v
Gear Head
Posts: 28
Joined: Mon Jun 11, 2018 2:03 pm

MAP Sensor Transfer Function Lookup

Post by 034v » Thu May 27, 2021 7:42 am

DA1 or D9S as I believe they're the same. I need to look at and attempt to map the frequency vs. the Pressure but cannot find it like I thought I remembered how to. Seem to remember either a 10 or 12 point function or 2D table.. I am drawing a blank and eyes are getting crossed from weeding thru binary and disassembled text.

Any help is awesome. I am attaching the D9S 56k if you could help.

Thanks
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Created the XDF's below in my spare time. More to come as time allows. Let me know if you need one.
CDBA4 - DONE
CDAN4 - DONE
CMBA0/CMAI3/6/7/9 - DONE
CZAJL - DONE
SFI-SD3 - DONE
GSALI - DONE
CCAQE - DONE
P3M-P3MA - DONE
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mpaton
BIN Hacker
Posts: 381
Joined: Mon Jun 23, 2008 1:39 pm

Re: MAP Sensor Transfer Function Lookup

Post by mpaton » Mon May 31, 2021 8:21 am

I've never seen a lookup table for the conversion of frequency to pressure. As in the LHBH document, it's a polynomial equation that is used. In your bin, it's at 0x34A0
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