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Which LC-1 wideband?


Cone_Killer

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I have been searching all over for a wideband and I think the LC-1 is what I'm going with. I have seen so many different kits though. I can get a nice local deal on this one http://www.innovatemotorsports.com/xcart/product.php?productid=16236&cat=262&page=1 but I'm not sure if it would be sufficient for tuning. I am tuning open source.
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I like my PLX a lot. http://www.plxdevices.com/product_info.php?id=SEMOSMAFRV2

You can either get this to log to a computer, or make your own (I made my own): http://www.plxdevices.com/product_info.php?id=DATAUSB

 

The MultiGauge is nice too, as you can use one gauge for multiple sensors "daisy-chained" with other PLX sensor modules. http://www.plxdevices.com/product_info.php?id=MULTDM6

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  • 3 weeks later...
So I picked up an LC-1, installed it and everything is working just fine. This morning it started cycling between 7.4-22.1 rapidly. I did a quick recalibration while coasting and it went back to normal. I plan on doing an open air calibration when I get home but I'm curious as to why it needed recalibration only 2 weeks after the install?
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When calibration is off it just reads off by a few decimal places. What you describe sounds like something entirely different. How sure are you of your wiring?

It's also not entirely unheard of to get a bad unit.

Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs.
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when you first calibrated it, did you do an open air calibration? I kno with my LC-1 you were supposed to do that before running it in the exhaust system. Also did you wire in an LED to monitor the sensor? If not i would suggest doing so as that flashing LED can help diagnose issues that may arise, depending on how it blinks.
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I did the open air calibration before the install. The install is pretty flawless and easily accessible. I soldered pretty much all connections and made a detachable plug for the grounds (all grounded to the same place per innovate instructions) The led was on solid during all of this. Like I said though, after a quick 30sec recalibration, the readings went back to normal. I am going to do a bit of datalogging tonight so I will see if it happens again.

 

Here is a pic of my setup.

 

http://legacygt.com/forums/attachment.php?attachmentid=145285&d=1363561471

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Mmm. Odd. You'd expect to see some error code. Your downpipe to turbo isn't leaking is it?

BTW, you can cheat somewhat if you don't want to pull the sensor for free-air calibration. Leave the car with the engine off overnight or at least for several hours. Stick a vacuum cleaner in the tailpipe to pull air through the exhaust. If you have two mufflers, block the other one off. Pull air like this for a few minutes and then recalibrate while the vacuum is running. Sounds odd but it works fine.

Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs.
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You can't rely on that, especially if you're catted. Better be sure fresh air moves through somehow.
Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs.
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Haha I like the vacuum idea. I plan on calibrating it before I leave work today. will have been sitting for 11 hours on a downward slope. Maybe the exhaust gases will travel out the exhaust due to the incline.

 

That will only get the lighter than air components. CO is same weight as air and neither rises nor sinks, it just diffuses slowly. This is why you can mount a CO detector at floor or ceiling level with equal effectiveness.

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