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LC-1 Wideband problems...

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Old Jun 8, 2006, 10:47 PM
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Exclamation LC-1 Wideband problems...

Just put in the LC-1 from Innovate today and like the instructions said, i connected the "analog output 1" to the wire on the o2 sensor on the header, to simulate a narrowband. Few questions though...

Am i supposed to put the wideband sensor in the first o2 bung, on the headers?

If so^ which color wire am i supposed to connect the "analog output 1" wire to?

Is the narrowband display supposed to look like this?



--This is at idle BTW--

My wideband reads


I need help desperately!!!! Thanks in advance
Old Jun 9, 2006, 05:33 AM
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Originally Posted by sykou
Am i supposed to put the wideband sensor in the first o2 bung, on the headers?
NA --> 18in DOWNSTREAM of the exhaust port
FI --> 36in DOWNSTREAM of the exhaust port (due to increased EGT's)

in most cases you install a bung somewhere in you downpipe or just before the cat.
Old Jun 9, 2006, 09:32 AM
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best is about on the downpipe. like comatose said, just before the cat... god i want a friggin wideband.
Old Jun 10, 2006, 02:04 PM
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I took out the second o2 sensor and mounted it in the car, then put the wideband o2 sensor in place of it. The bung right before the cat by the way. The narrowband reads the signal from the first o2 sensor right?
When i'm at WOT the wideband reads around 12.0 but the narrowband reads almost to the max side of rich....IS something wrond? Thanks!
Old Jun 10, 2006, 02:29 PM
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Originally Posted by sykou
I took out the second o2 sensor and mounted it in the car, then put the wideband o2 sensor in place of it. The bung right before the cat by the way. The narrowband reads the signal from the first o2 sensor right?
When i'm at WOT the wideband reads around 12.0 but the narrowband reads almost to the max side of rich....IS something wrond? Thanks!
Only that narrowband guages are worthless.
Old Jun 10, 2006, 02:35 PM
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Oh so it's just the normal innaccuracy of the narrowband gauge. So when i'm at WOT and my narrowband is reading rich, but my wideband reads stoich, i should trust the wideband over the narrow...???
Old Jun 10, 2006, 08:56 PM
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Originally Posted by sykou
Oh so it's just the normal innaccuracy of the narrowband gauge. So when i'm at WOT and my narrowband is reading rich, but my wideband reads stoich, i should trust the wideband over the narrow...???
trust the WBo2. when i had my WB installed i still had a NB gauge in the car and they literally read direct opposites at all times. it was really strange...my guess was since the NB had a delay and WB was fed in 'real time' that they did not corrolate.

btw, what did you do with the OEM sensor? can i buy it off of you?
Old Jun 10, 2006, 09:23 PM
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CEL just went on after 20 or so miles. i don't have a obd2 scanner so i might not be able to clear it unless i do a trial and error process.
^ i have the stock one mounted in the car now. Seems i may have to get it installed by the looks of things..

And a short vid of how it reads at idle..

Last edited by sykou; Jun 10, 2006 at 09:28 PM.
Old Jun 11, 2006, 07:19 AM
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So whats wrong with the narrow band? It reads OK. Ignore the cycling and concentrate on where it peaks. They are saying basically the same thing.
Old Jun 11, 2006, 08:14 AM
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Originally Posted by airlinevomitbag
So whats wrong with the narrow band? It reads OK. Ignore the cycling and concentrate on where it peaks. They are saying basically the same thing.
narrow band sends a pulse signal depending on the voltage going into the sensor...it's basically like a switch; it's on or it's off. it's not a reliabe, or very accurate, reading.
Old Jun 11, 2006, 11:57 AM
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Originally Posted by comatose721
narrow band sends a pulse signal depending on the voltage going into the sensor...it's basically like a switch; it's on or it's off. it's not a reliabe, or very accurate, reading.
Work with it for awhile with an AFC and you can tell whats going on. I admit its a "get you in the ballpark" type reading but you can use it like I do to get 30+ mpg. Wouldn't rely on it for turbo but I think it gets an unecessary bad rap.
Old Jun 11, 2006, 12:36 PM
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i wouldn't use it for tuning a SAFC by any means; but if you feel comfortable doing so then go for it. it gets a bad wrap because:

#1 it's not accurate

#2 too many people decide to tune the car with it, not realizing it's deaccuracy, and go melting stuff or getting knock because they aren't paying attention to how lean they are truly running.

#3 it's not accurate

i just don't consider a safe method of tuning your car whether you are NA or FI.
Old Jun 11, 2006, 01:54 PM
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^^^Yer crazy. People aren't accurate. It is a usable gauge.
Old Jun 11, 2006, 02:17 PM
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i reinstalled the first stock o2 sensor in the bung on the headers. Gonna try using the analog output 1 to simulate the second stock o2 sensor. I think its cuz it's not seeing any af mixture its throwing the light.
Old Jun 11, 2006, 02:22 PM
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Airlinevomitbag,

"Conventional (narrow-band) exhaust gas oxygen sensors have been widely used in automotive applications since 1981. Conventional sensors have one to four wires and can only sense air/fuel ratio over a relatively narrow 14.5 to 15.0 range. They are intended to be used with 3-way catalytic converters that require operation near the stoichiometric point (14.7 air/fuel ratio). The range of narrow-band sensors is inadequate for performance tuning. While originally developed for lab and specialized automotive applications, wide-band sensors are ideal for tuning."


have you done your research?




Last edited by comatose721; Jun 11, 2006 at 02:29 PM.


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