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Where to place wideband sensor?

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Old Jul 26, 2007 | 08:43 AM
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Default Where to place wideband sensor?

Just buying an LC-1 to go with my datalogit and want to permanently mount the sensor as I dont want to be running the wiring to the tail pipe.

The OE is just after the turbo, but could I place the wideband one in the centre section?

Wayne.
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Old Jul 26, 2007 | 12:12 PM
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If it's a permanent install then place it where the std one is and program one of the analogue outputs on the LC1 to match the AFR/voltage curve of the std sensor and wire it to the O2 sensor input on the ECU.

Once it's all working you can modify the responce curve to make it run a little leaner on cruise.

Andrew...
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Old Jul 26, 2007 | 07:10 PM
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Andrew, I have heard some bad reports on the LC-1 replicating the o-1v signal. I do like the idea of leaning up the cruise though. May even use the car for work if I can get it more economical.

I could do with a being a permanent install but I was planning on leaving the OE in place.

Cheers,

Wayne.
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Old Jul 27, 2007 | 07:04 AM
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Forgot to say that the instructions say mount after the turbo but before any cats?

When Andy mapped the car his sensor went in the tailpipe. So can I mount in the centre section for ease of fitting?
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Old Jul 27, 2007 | 11:37 AM
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I have an LC-1, with an XD16 gauge and i swapped the narrowband sensor for the bosch wideband one, used the programmable analoge output (simulates narrowband) from the LC-1 to the ecu and it works fine.
Just make sure you do the free air calibration correctly and it should be ok.

You can mount the sensor in the back box / mid pipe / etc if you like, they are very sensative and can work from a sniff of exhaust fumes, but i found it much more logical to use the narrowband sensor mount.
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Old Jul 27, 2007 | 11:42 AM
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My wideband is about 2" after the turbocharger, although this is on a newage so my OEM sensor is lower down by the gearbox.
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Old Jul 27, 2007 | 12:07 PM
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For a permanent fit I would always put it near the top of the downpipe as it's relatively cosy/dry/warm there, that part of the exhaust heats up quickly and it's affected as badly by any pooled water which collect in the lower parts of the exhaust.

Personally I've not tried using the LC1 output long term, I use a Techedge installation in my own car, the LC1 is purely used because of it compatibility with various mapping applications. I like the techedge because of the additional logging channels and the ability to start/stop on board logging via the gauge:

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Old Jul 27, 2007 | 08:27 PM
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why not fit it on the oe position on the last section of manifold. no delay in the readings.
or do you have to have the oe one fitted aswell?
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Old Jul 28, 2007 | 10:42 AM
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I suppose I can fit it in the OE loaction after the turbo. I had been reading on various forums that some people reported problems with the 0-1v ouput. If it works them I'm going to give it a go.

I have a catted downpipe and thats why I was asking. According the the LC-1 site the sensor should be after the turbo and before any cats. Doesnt give much of an option in my case really.

Anyone know of a small square wideband display guage? I dont need it right away as the LC-1 will be mainly for the datalogit.

Cheers for the help,

Wayne.
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Old Jul 28, 2007 | 02:25 PM
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I to am waiting for my lc-1 to arrive. I was gonna put it as close to manifold as possible. But after reading that web site, dont think the sensor will last long.
Its gonna have to be just after the turbo or in the up pipe. Wonder how hot that will be?
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Old Jul 28, 2007 | 02:37 PM
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The LC-1 is pretty compact anyway mate. Are you not thinking about the LM-1???

The LC-1 is a slimline 52mm gauge??

My LC-1 is in a custom steering column cowling right in front of me. How about placing it there?

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Old Jul 28, 2007 | 02:41 PM
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no, the lc-1 is the newer compact version suitable to link with the datalogit software.
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Old Jul 28, 2007 | 02:44 PM
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Originally Posted by RAPID RABBIT
no, the lc-1 is the newer compact version suitable to link with the datalogit software.
So why would you need anything more compact that the LC-1 pictured?

Just wondering?
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Old Jul 28, 2007 | 04:35 PM
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frayz,

The LC-1 is the wideband, not the guage right?

Also, do you have anymore of the cowlings shown in your pic? I want one!
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Old Jul 28, 2007 | 05:55 PM
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LC-1 Wideband Controller

The LC-1 Lambda cable is a complete wideband controller built in to a sealed cable. It features the same award-winning patented digital measurement principal found in the LM-1, and includes digital input, output, and 2 user programmable analog outputs.
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Old Jul 28, 2007 | 06:07 PM
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Ah sorry guys, i thought it included the gauge i had. Beg your pardon.

Sorry mate, that cowling was a one off along with my pillar pod. I had the lot flocked when i did the dash project.
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Old Jul 28, 2007 | 06:14 PM
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Ive just checked the site and i have the LC-1 controller and the XD-1 gauge.

Available here

Mocom Racing - Performance car and trackday products

Heres my pod fitted.

Last edited by frayz; Jul 28, 2007 at 06:17 PM.
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Old Jul 28, 2007 | 06:28 PM
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How do you flock a dash. looks mint
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Old Jul 28, 2007 | 11:17 PM
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Originally Posted by RAPID RABBIT
How do you flock a dash. looks mint
Check this out
https://www.scoobynet.com/interior-1...i-project.html
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Old Aug 9, 2007 | 10:58 PM
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Originally Posted by AndrewC
If it's a permanent install then place it where the std one is and program one of the analogue outputs on the LC1 to match the AFR/voltage curve of the std sensor and wire it to the O2 sensor input on the ECU.

Once it's all working you can modify the responce curve to make it run a little leaner on cruise.

Andrew...
Andrew, I have it fitted and it works fine on the narrowband output as preprogrammed from the factory.

Any values for making it leaner but not too lean?

Cheers,

Wayne.
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Old Aug 22, 2008 | 12:35 PM
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Do you recommend connecting the narrowband output to the connector/wires in the engine room, or directly to the ECU wires in the footwell?
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