Re: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?
.76v accessory
.87-.88v engine idle (edit: seems like it's .94v after a few minutes of idling. My analog boost gauge reads -19.9psi)
Voltage does climb slightly with throttle position.
Last edited by MiztahSparklez; 27-10-2017 at 08:54 AM.
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