Help, on installing a FP gauge

[RacerGSR]

I ordered the Greddy Trusty Fuel Pressure gauge, but the instructions are in Japanese. Unfortunately I can't read Japanese.

I can figure out everything except for what wires are what. There is a black, red, orange, and white.

I pretty much figured out the black =ground but if anyone else has this gauge or the wires are the same color for all FP gauges could you please help me out?

On the diagram there are two 12V and for Ignition. I just gotta figure which ones. Thanks.

[RacerGSR]

no one? i'm dying over here. If you help me I'll give you a million dollars....well I won't really give you a million dollars, but you get the satisfaction of knowing that you helped me and that is like a million dollars.

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[RacerGSR]

once again, thanks guys.

[Civic TSI]

By your wires colors, I'd say that black is ground, red is 12V, orange is 12V on ignition and the white one is connected on the O2 sensor. Just don't know why this gauge require a continuous 12V.

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To 24 PSI, and beyond !
HS Le Club

[Holden]

My Intellitronix FP gauge had four wires. If your FP gauge is illuminated, probably one of the 12V+ wires is for power and the other 12V+ wire is for illumination/dimming (this one hooks up to dash light or some other 12V+ source that only provides power when the lights are on)

My gauge is digital, so when it gets power on the 12V+ dimmer wire, it actually gets dimmer to be less obnoxious at night.

A mechanical gauge would probably turn on the backlighting.

Hook up the ground and send 12V through the orange and/or red wires. If one lights up the gauge, you've got it.

To sum it up, my guess is that:

Black = 12V-

Red = 12V+ (from ignition so gauge turns off with the car).

White = FP Sender wire

Orange = 12V+ (from dash light or other source that turns on with parking lights).

Good luck,

Greg

[This message has been edited by Holden (edited June 06, 2000).]