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Re: Vaccum Wide Band and Air Fuel Meter
Posted by Drew in Houston [Email] (more from Drew in Houston) on Sun, 5 Dec 2004 16:09:03
In Reply to: Vaccum Wide Band and Air Fuel Meter, Dave Chicago, Sun, 5 Dec 2004 13:22:38
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Lars and I just put a real nice GReddy boost gage in his 900 over the weekend.
We tapped-into the power at the headlamp switch. Everything's there: constant 12V steady (parking light feed), ignition switched 12V (headlamp feed), and switched-with headlight feed as well for auto dimming. Plus it's pretty close to where your gage will probably be. No 5V though. Also, those are higher current fuses so you might want to run smaller in-line units, probably not necessary but something to think about.
I wouldn't bother with any special 5V power supply, Radio Shack can hook you up with a small 12V --> 5V transformer for cheap; I can't imagine that you're pulling any significant current--probably for I/O logic level I'd guess.
What unit are you installing? It sounds like a pretty neat idea to feed-out the 0-1 V to the ECU. Will it be a scaled signal across the full 0-1 V or more like an on/off similar to a narrow band? If it trully is a simulated 0-1V output you should be able to plug that right into where the narrow band originally was.
Post a link to your controller/analyzer if you can.
posted by 67.10.24...
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