Re: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?
I now understand 100%. It doesn't really matter which, as long as we have some information regarding the pressure post TB. Aquamist system uses F-IDC to meter flow. Boost pressure is used for correct purposes only.
The flow should not be rushing up and down at all, there is something wrong. One way we can find if the system is reading the IDC% properly or not: link "FDC" jumper and see if the incoming IDC signal is linear or not.
Post the results here.
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Richard L
aquamist technical support
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