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Old 30-10-2017, 10:29 AM
MiztahSparklez MiztahSparklez is offline
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Join Date: Jan 2017
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Default Re: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?

Quote:
Originally Posted by Richard L View Post
This seemed to be a bit on the low side. What is the operating range of the MAP sensor?

a 2-bar MAP sensor should read approximately 1.8V precrank.
a 3-bar map sensor should read approximately 1.3V pre-crank.
Hmm might be part of my problem. The sensor is supposed to be 2.5 bar. The voltage output goes from 0-5v according to the same document I found the bypass information in. Wonder if I tapped the wire for temperature and not pressure. The map sensors have both boost and temperature built in.
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