#11
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2008)
Will take a pic as soon as I get a chance... thanks.
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#12
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2008)
hello i have the aquamist hfs-2/3 v2 and have a US sti my question is for the green injector (-) wire, does it have to jump all 4 or just one, i see the diagram has the pins that should be used in color, and it seems that all 4 are colored thats my confusion thanks for your help
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#13
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2008)
You only need to splice into just one fuel injector. It can be anyone of the four. On the wiring diagram we provided here, I picked injector #1.
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Richard L aquamist technical support |
#14
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2008)
I am just about to install a HFS-3 into a Australian 08 STI - would the ECU wiring be the same?
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#15
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2008)
I am not sure. Is it regarded at JDM?
If all else fails wiring the red and green wire of the grey harness directly to the fuel injectors. Almost 99% of the ECU wiringd to the fuel injectors have a pink trace.
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Richard L aquamist technical support |
#16
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2008)
JDM, no we have the 2.5 the same at the USA. Anyway I check the wiring and they look the same. FYI I have now installed the system and it seems to be working fine as per the manual.
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#17
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2011)
Good to know that.
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Richard L aquamist technical support |
#18
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2011)
Hi Richard,
I have a 2007 sti usdm and having trouble with the fail safe. I installed the kit and got my car tuned the other day but we didn`t set the fail safe up at that point in time. I wired in the bcv the way you have it shown which is on the ground to the bcv correct? When thats wired up like that and the system and ignition is powered up you should be able to read 12volts across the connector at the bcv shouldn`t you? and in turn you should have continuety through the white and brown wire? So if the system has a fault cut the ground to the bcv = low boost? Could it be that something has failed in the control for the system? Or maybe I don`t have one of the connections inside jumped correctly? I would be very thankfull for some help with this. Didn`t think I would have such a hard time with it. Thanks Scott |
#19
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2011)
You only set up the failsafe after you have run the system for a week or two.
First set up the failsafe window: 1. With the engine running 2. Put the intended jet on the screen. 3. Put the "prk" jumper link to "SYS" to activate the system manually. 4. Set the SC trimmer (on gauge) until the gauge displays 6 bars. Put the jumper back to the "prk" slot 5. Set the WL ten clicks from fully counter-clockwse 6.. Set the WH ten clicks from fully clockwse 7. Go for a drive and make sure the failsafe does not trip. 8. If it trips, advance the WL trimmer counter-clockwise a click or two. 9. If it doesn't trip, advance the WL trimmer clockwise a click or two until it does. Then un-advance it a chick of two, That is it. Once this is done, don't alter the threshold or gain on the controller Let me know how you get on up to this point. Brown and white wire: (wire it at the ECU) 10. Key off .......... brown/white wire goes open-circiut 11. Key on ......... brown/white wire goes close-circuit 12. During spray ..... brown/white stays close-circuit 13. Loss of spray ..... brown/white goes open-circuit Wire the brown and white wire exactly as the diagram, cutting the "ground" side of the BCV. Brown goes to the BVC side and white goes to the ECU side. If you don't want CEL after failsafe trigger, link the DR=1 jumper (PAGE 12.6 of the user manual)
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Richard L aquamist technical support |
#20
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Re: Subaru STi to HFS-3 wiring diagrams (2004-2011)
Cheers! I`ll give that a go and let you know how I get on.
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