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Old 31-12-2013, 07:43 AM
infinkc infinkc is offline
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Join Date: Apr 2010
Posts: 29
Default Re: Hfs-4 wiring for Audi B8 s4 3.0 (2009-2013)?

Quote:
Originally Posted by Richard L View Post
I can't seem to find the page where the manual says for 2.5 use 3 setting. It may be on one of the earlier manual (pre v2).

- HFS4-v1 has 2 or 3 bar map sensor option.
- HFS4-v2 has 2.5 or 3.5 map sensor option.

If you have a v1, for 2.5 use 3 setting. Hope this clarifies it.
How do I tell if it's a v1 or 2? The manual I pulled from the howertonengineering site which is the v1.

Quote:
Originally Posted by Richard L View Post
I was wondering if we inject some voltage to the valve, can we fool the ECU to perform a partially opened state.
Yea I need to play around and see what will be the best option to get the fail safe working. I should have it all up and running tomorrow.
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