fuel Posted July 24, 2010 Share Posted July 24, 2010 Hey guys I've got an older HKS Electronic Boost Gauge sitting around here which I pulled from a previous car of mine a while back, which I want to fit into my Galant GT - trouble is I can't remember which wires were connected to which on the car I pulled it from. On the back of the gauge itself it has two sockets, one plug goes to the boost sensor and has three wires (pink yellow and white) but on that same loom are three other wires (green, grey and brown) which I have no clue what they go to. On the other plug is four wires, black which I'm assuming goes to earth, red which is constant power, and yellow and orange which one must be illumination feed and the other could be +IGN feed, but I don't see why you would need a separate power feed for constant battery and +IGN. I've tried google searching and there's plenty of other people asking the same question but no answers at all from what I could see. Cheers *edit* it's been pointed out to me that the gauge is a peak and hold type which is why it would need constant battery power, so am just wanting to know what the other three wires (green grey and brown) on the same plug as the boost sensor loom do. Quote Link to comment Share on other sites More sharing options...
OSM Garage Posted July 24, 2010 Share Posted July 24, 2010 Found this on the net. Does this help? http://www.crossoverauto.com/mp3-3.htm Not reaaly huh? Quote Link to comment Share on other sites More sharing options...
fuel Posted July 24, 2010 Author Share Posted July 24, 2010 looks to be a boost controller? I need the actual wiring colour and what they go to etc. Quote Link to comment Share on other sites More sharing options...
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