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#1
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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. |
#2
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Re: BMW N54 HFS-4 with t-map 3.5
Which HFS4 version do you have? V3 or V3.1
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Richard L aquamist technical support |
#3
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Re: BMW N54 HFS-4 with t-map 3.5
Hi Richard, is v3.1
thx |
#4
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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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Richard L aquamist technical support |
#5
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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? |
#6
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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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Richard L aquamist technical support |
#7
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Re: BMW N54 HFS-4 with t-map 3.5
Here is the latest:
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Richard L aquamist technical support |
#8
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Re: BMW N54 HFS-4 with t-map 3.5
Perfect it works
Thanks Richard |
#9
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Re: BMW N54 HFS-4 with t-map 3.5
The wiring is is identical.
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Richard L aquamist technical support |
#10
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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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