How to wire oldschool HKS boost gauge?
08-01-06, 11:54 PM
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How to wire oldschool HKS boost gauge?
I just got an old HKS gauge that matches the factory look, problem is other than light I have no idea how to wire it. Anyone have one and could enlighten me please?
08-02-06, 12:19 AM
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pay close attention to my diagram or you'll blow your head gasket and seize your pistons.
just kidding man. where you wire the power to depends on if you want it on whenever your car is on, or just when your lights are on. If you only want it on when your lights are on, just use your radio's illumination wire (orange).
just kidding man. where you wire the power to depends on if you want it on whenever your car is on, or just when your lights are on. If you only want it on when your lights are on, just use your radio's illumination wire (orange).
08-02-06, 02:00 PM
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It's an electronic gauge, I should have been more specific sorry. There are 3 wires from the sensor blue, yellow and green as well as 4 wires on the power harness red, black, yellow and orange. On the back of the gauge there are 5 posts B+, GE, IG, 5V and IN.
I'm guessing on the power harness that red is constant power going to B+, yellow is for the light which goes to a wire that only gets power when the car lights are on, orange is power when the key is on and goes to IG and black is ground which goes to GE.
On the sensor harness I'm guessing you'd connect to ground, keyed power and either 5V or IN but no idea which goes where and I'm worried about screwing up the sensor if I wire it wrong.
I'm guessing on the power harness that red is constant power going to B+, yellow is for the light which goes to a wire that only gets power when the car lights are on, orange is power when the key is on and goes to IG and black is ground which goes to GE.
On the sensor harness I'm guessing you'd connect to ground, keyed power and either 5V or IN but no idea which goes where and I'm worried about screwing up the sensor if I wire it wrong.
09-28-07, 08:23 AM
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I hate to dig up old threads..
But has anyone figured out this mystery?
I myself have this exact same gauge.. but I have no idea if I am trying the correct sensor with it.
I have a Denso MAP sensor 5v 949940-6110
and it has 3 wires (Yellow, Blue and Green) but I also do not know where to hook those up to. I attempted to contact HKS, but they could only tell me generic info..
I have come to the conclusion that Green is the ground, and they said that yellow is 5V, but when I hooked it up that way, the gauge appeared to be in "reverse" so instead of showing 20in/g? it was at 6 psi??
I tried switching things around, and I think I screwed my sensor, as things were all over the place afterwords.
Please help.
Oh, here is a photo of the back of the gauge:
But has anyone figured out this mystery?
I myself have this exact same gauge.. but I have no idea if I am trying the correct sensor with it.
I have a Denso MAP sensor 5v 949940-6110
and it has 3 wires (Yellow, Blue and Green) but I also do not know where to hook those up to. I attempted to contact HKS, but they could only tell me generic info..
I have come to the conclusion that Green is the ground, and they said that yellow is 5V, but when I hooked it up that way, the gauge appeared to be in "reverse" so instead of showing 20in/g? it was at 6 psi??
I tried switching things around, and I think I screwed my sensor, as things were all over the place afterwords.
Please help.
Oh, here is a photo of the back of the gauge:
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