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.
The OE is just after the turbo, but could I place the wideband one in the centre section?
Wayne.
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...
Once it's all working you can modify the responce curve to make it run a little leaner on cruise.
Andrew...
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.
I could do with a being a permanent install but I was planning on leaving the OE in place.
Cheers,
Wayne.
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?
When Andy mapped the car his sensor went in the tailpipe. So can I mount in the centre section for ease of fitting?
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.
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.
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:
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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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.
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.
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?
Its gonna have to be just after the turbo or in the up pipe. Wonder how hot that will be?
Joined: Sep 2005
Posts: 19,945
Likes: 2
From: "Engineering Perfection in Essex"
Joined: Sep 2005
Posts: 19,945
Likes: 2
From: "Engineering Perfection in Essex"
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.

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.
Joined: Sep 2005
Posts: 19,945
Likes: 2
From: "Engineering Perfection in Essex"
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.
Sorry mate, that cowling was a one off along with my pillar pod. I had the lot flocked when i did the dash project.
Joined: Sep 2005
Posts: 19,945
Likes: 2
From: "Engineering Perfection in Essex"
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.
Available here

Mocom Racing - Performance car and trackday products
Heres my pod fitted.
Last edited by frayz; Jul 28, 2007 at 06:17 PM.
Joined: Sep 2005
Posts: 19,945
Likes: 2
From: "Engineering Perfection in Essex"
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...
Once it's all working you can modify the responce curve to make it run a little leaner on cruise.
Andrew...
Any values for making it leaner but not too lean?
Cheers,
Wayne.
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