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  #1  
Old 18-09-2016, 03:38 PM
PConnect PConnect is offline
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Default BMW N54 HFS-4 with t-map 3.5

Hi friends
made this weekend my first Aquamist installation, all went pretty nice until i activated the failsafe function (“DSF” using the “DHB” jumper). If i set the Jumper to DR0 and i switch off the WI at the dash gauge, the car jumps to limp mode. While having the Jumper on DR1, i just can hear from the exhaust noise, that the wastegate most probably is open.

now i detect that the car is not running the standard t-map 2.5, but the t-map 3.5 and i believe this could be the issue.
Whats your toughs on this?

Under point 7 (Map Sensor Type), can i now just cut the middle solder link and add a solder link to the 3.5 and the problem is fixed? I believe the right one should get linked from the picture, but im not sure one this.


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  #2  
Old 18-09-2016, 10:52 PM
Richard L Richard L is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

Which HFS4 version do you have? V3 or V3.1
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  #3  
Old 19-09-2016, 06:48 AM
PConnect PConnect is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

Hi Richard, is v3.1
thx
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  #4  
Old 19-09-2016, 07:13 AM
Richard L Richard L is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

The V3.1 is factory set to 3.5 bar MAP sensor.
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  #5  
Old 19-09-2016, 04:06 PM
PConnect PConnect is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

ok, its confusing because on the frontside of the board tmap 2.5 is highlighted.

So left solder link means 2.5, middel 3.5, right atmosperic; 2|3|A right?
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  #6  
Old 20-09-2016, 08:10 AM
Richard L Richard L is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

The backside of the board should be 3.5 linked. The drawing you posted is for the v3 controller, not v3.1.
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  #7  
Old 20-09-2016, 08:23 AM
Richard L Richard L is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

Here is the latest:

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Old 25-09-2016, 12:21 PM
PConnect PConnect is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

Perfect it works

Thanks Richard
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  #9  
Old 26-09-2016, 07:18 AM
Richard L Richard L is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

The wiring is is identical.
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  #10  
Old 11-01-2017, 02:40 PM
johmei johmei is offline
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Default Re: BMW N54 HFS-4 with t-map 3.5

Hm, I have not been using the WMI for the last year but run a 4Bar T-MAP since spring. If I want to run the WMI again I would need to resolder my v3.0 board? Never thought of the Aquamist needing adjustments to the T-Map but it makes sense.

Ps. I use the JB4 piggy now to handle the different voltage of the new sensor. Flash is standard 2.5bar MAP-tables.

Last edited by johmei; 11-01-2017 at 02:43 PM.
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