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LC-1 Volt Guage Conversion Question....

Old 08-03-2006, 12:20 AM
  #1  
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Default LC-1 Volt Guage Conversion Question....

hey guys,
I was thinking. Since the lc-1 has 2 analog outputs, could you potentially use a volt gauge that reads out digital as a roundabout air/fuel gauge? I know it won't be accurate but I was wondering if it was possible with say the autometer digital volt gauuge. The gauge reads between 8-18 volts.
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Old 08-03-2006, 11:50 AM
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Default Re: LC-1 Volt Guage Conversion Question....

Wouldn't work. LC-1 and basically if not all WBo2 operate 0.1-5volts.

With my DIY-WB I bought the smallest Digital Voltmeter I could find and mounted that. You eventually learn what voltage ranges you want to be in and when.
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Old 08-03-2006, 11:58 AM
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Default Re: LC-1 Volt Guage Conversion Question....

how accurate/reliable is that diy-wb? I saw that a while back and wasn't sure. I mean this is hmt, you'd think everyone would build one if it saved a buck.
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Old 08-03-2006, 12:00 PM
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Default Re: LC-1 Volt Guage Conversion Question....

Never Steered me wrong, The only reason why I went the way of the LC-1 is because I tune alot of Customer cars and could be lugging the mess of Wires for the DIY-WB.

The only thing is, Unless you can get the Sensor for free like me a LC-1 is cheaper.
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Old 08-03-2006, 11:53 PM
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Default Re: LC-1 Volt Guage Conversion Question....

Originally Posted by JK_Motorsports
Wouldn't work. LC-1 and basically if not all WBo2 operate 0.1-5volts.

With my DIY-WB I bought the smallest Digital Voltmeter I could find and mounted that. You eventually learn what voltage ranges you want to be in and when.
But couldn't you program with the lc-1 to compute the conversion of voltages to 1-5. I know that for the autometer air/fuel, you can hook up the purple wire to the analog output and configure the analog output in the lc-1 to be able to convert the narrowband readings to a roundabout wideband reading
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Old 08-04-2006, 08:19 AM
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Default Re: LC-1 Volt Guage Conversion Question....

Well, here is what I did.
Custom voltometer that shows measured voltagex10 and Lc-1 analog output programmed to be 0,1V at AFR 1, 0,2V at AFR 2 and so on up to 5V at AFR 50.
The result is on the picture, I have tested with PC 5V output and multimeter - multimeter shows 5,06V and my gauge 50,6 and always when voltage changes it changes on miltimeter and gauge, I have seen someone didt it before and it can replace dedicated gauge except it will not show any error code, but I do not care. Of course it will be used only to see whether my AFRs didn't go to high - I doubt it would be a good idea to tune using it - I paid for it like 25 bucks so I guess it was worth it and it should be pretty acurate - for sure more acurate than NB - HM rulez

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Old 08-04-2006, 08:43 AM
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Default Re: LC-1 Volt Guage Conversion Question....

Get this and program one of the outputs on the lc-1 to 1-2v
http://cgi.ebay.com/20A-dc-GREEN-LED...QQcmdZViewItem

You can jumper the decimal oint to where ever you need it.

But if the lc-1 is putting out 1.25v your A/F would be 12.5 and the gauge would be reading 1.25. But you should be able to use the dip switches to mone the point over so that it displays 12.5

Later
Randy
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Old 08-04-2006, 09:05 AM
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Default Re: LC-1 Volt Guage Conversion Question....

pretty tricky thing is most of the voltometers (at least those I checked) can't use common ground with the sensor
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Old 08-04-2006, 11:28 AM
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Default Re: LC-1 Volt Guage Conversion Question....

Why not just use a regular Autometer AFR gauge and send a 0-1V signal to it. Hook up the LC-1 to your laptop and log while monitoring the gauge. Certain afr = certain light. Job done for $25 and will give you a good idea whats going on while driving.

EDIT: I'd actually buy this http://www.innovatemotorsports.com/x...cat=250&page=3 Electronic gauges you get glare bullshit and it can get hard to see. That would probably work excellent and its really not that much money.
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Old 08-04-2006, 12:31 PM
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Default Re: LC-1 Volt Guage Conversion Question....

Originally Posted by Eville140
Get this and program one of the outputs on the lc-1 to 1-2v
http://cgi.ebay.com/20A-dc-GREEN-LED...QQcmdZViewItem

You can jumper the decimal oint to where ever you need it.

But if the lc-1 is putting out 1.25v your A/F would be 12.5 and the gauge would be reading 1.25. But you should be able to use the dip switches to mone the point over so that it displays 12.5

Later
Randy
You're the man! I just ordered one of these. Thanks!
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