Stock MAP sensor -> 3 bar sensor linearization

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Stock MAP sensor -> 3 bar sensor linearization

Postby attz » Mon Jan 02, 2017 9:48 pm

Sup peeps.
As the topic subject says, I got a question about MAP linearization on my 1.9TDI VP37 AFN engine.
I changed the MAP sensor to 3 bar sensor from PD 130/150 engines and compared my ECU map and the PD engine ECU linearization maps, but there's a difference even in y axys(mV).
So my map looks like that:
82mV = 200mbar
989mV = 2600mbar

PD engine map:
82mV = 200mbar
951mV = 3000mbar

The question is - should I just take whole map(edit y axys to 951 and equal it to 3000mbar) from PD? Or should I leave 989 and convert the resulting mbar value?

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby xaparrix » Wed Jan 04, 2017 12:42 pm

on that ecu (msa15) you only have to change 2600 to 3000 nothing else..

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby attz » Wed Jan 11, 2017 10:54 pm

Well, I have an ECU from AVG engine, so it's EDC15VM+
If I convert my map voltage, I'm getting 989mV = 3120. So should I leave axys 989 and make it 3120 or change axys value to 951=3000?

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby xaparrix » Thu Jan 12, 2017 11:26 am

attz wrote:Well, I have an ECU from AVG engine, so it's EDC15VM+
If I convert my map voltage, I'm getting 989mV = 3120. So should I leave axys 989 and make it 3120 or change axys value to 951=3000?

change the axys as well.. 951=3000

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby attz » Sun Jan 15, 2017 9:49 pm

will do, thanks :)

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby arwolc » Sun Oct 14, 2018 6:30 pm

was result with that change?

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby arwolc » Sun Oct 14, 2018 6:36 pm

Quick question - when I got real linearisation of MAP, Could I read real inlet pressure in VagCom? I change more linearisation combinations of 3Bar MAP, but over 2600 I couldnt read. SVBL is also changed. Could You help?

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby xaparrix » Tue Oct 16, 2018 1:02 pm

arwolc wrote:Quick question - when I got real linearisation of MAP, Could I read real inlet pressure in VagCom? I change more linearisation combinations of 3Bar MAP, but over 2600 I couldnt read. SVBL is also changed. Could You help?

you have to change the diagnostic limiter on your map.. just search on this forum and you will have the answer

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Re: Stock MAP sensor -> 3 bar sensor linearization

Postby arwolc » Wed Oct 17, 2018 5:07 pm

Thanks for answer!

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