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Old Jan 5, 2008 | 06:52 AM
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Bausse 9's Avatar
Bausse 9
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EDM MAP sensor
I have a IX GSR car, which I think is an EDM version.

It doesn't have a MAP sensor (or the hole for it) on the intake plenum.

What does this mean? How does my ecu read boost or know when it should hit boost cut?
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Old Jan 5, 2008 | 07:16 AM
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al\lupo
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The ECU simply does not know boost but "engine load", that is a function of air flow, that is related to boost (and other variables). An engine load too high leads to boost cut.
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Old Jan 5, 2008 | 08:59 AM
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ok, cool.

On JDM / USDM vehicles with the 1bar / 3bar MAP sensors respectively, how are these used by the ECU / Engine?
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Old Jan 5, 2008 | 10:38 AM
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On the USDM, the stock 1bar sensor is referenced by the EGR system. Mrfred could probably tell you each and every thing it's used for ...
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