Thread: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?
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Old 06-01-2014, 11:49 PM
Richard L Richard L is offline
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Default Re: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?
One step at a time, and update every stage if possible..

Can you measure the voltage of pin 2 when the idle and WOT?
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