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Old 07-07-2012, 01:59 AM
slick362 slick362 is offline
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Join Date: Jul 2012
Location: canada
Posts: 9
Default 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
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