Wideband and ecmlink

[booster16g]

I've been trying to research some with no real answer to my questions.. I recently purchased an innovate lc-2 wideband and sent out for dsm link v3. My question is why wideband? I know people say you need it for tuning, so I bought it. But does it have to be hooked up to the ecu and why? Can I run it in the downstream o2 spot and keep the upstream narrowband? How does the wideband work with dsm link is there a setup that the dsm link will use the readings from having the wideband? What's the tuning software for that comes with the wideband? Also, with the v3 i sent my injector type and size, but I have bc272 cams. I had the motor rebuilt and am wondering what I will need to do before start up and the break in...

 

[gsxeclipse102]

Widebands are much more accurate for telling air fuel ratios. You can place it down stream if you wish. You can run your factory o2 sensor and wideband if you wish. You still have to log the wideband through dsmlink though. Its honestly easier to just use the wideband and have dsmlink sinulate a narrowband

 

[Vegas Smith]

It needs to be hooked up to the ecu so that you can view the wideband results in dsmlink when tuning. As aforementioned, it's a very accurate way of telling you (or the tuner) what your air/fuel ratio is so that you can use dsmlink to adjust it perfectly. You can either run it solo in place of the front o2 sensor or run it in the second slot and keep your front o2. You will not find a consensus on which is best so don't even bother asking.

https://www.ecmtuning.com/wiki/lc2install

http://www.dsmtuners.com/threads/lc2-wideband-install-questions.487609/

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[doubleclutch]

Google is your friend:

https://www.ecmtuning.com/wiki/lc2install?s[]=wideband
You need to hook it up to the ecu so you can tuning your airflow. You will end up using what is called WBFactor in link to dial in your airflow for higher flow values. Yes, you can run it downstream and keep the upstream sensor. Some people will argue that this extends the life of the wideband sensor. My thought is, if the old narrowband works and the car runs well why mess with it. You will need to mkae sure to install the senor between 10 and 2 o'clock to help prevent moisture retention in the sensor.

you shouldn't need the tuning software that came with the wideband. Good luck finding a computer with a serial port anyways.

Once the wideband is wired into the ecu, you just have to tell link where it is. That is all the set-up that is required for the wideband

Cams will simply make your "AirFlowPerRev" number different in link. Someone should be able to tell you what your target number is for BC272 cams.

As far as motor break-in, there has to be some good resources for this somewhere.

 

[booster16g]

First, i want to say thank you for the quick answers and not treating my question as a stupid one. I can do the build, but I want to understand the tuning aspect, even tho I'm not doing the tuning. So the ecu needs the narrow band, but how does link use the wideband? Is it's only purpose to only give more accurate values to dsmlink for tuning? Does the wideband signal get used during normal operation still? When I get my chip back does that mean that since the injector values are added that I'll be able to start the car okay for break in?

 

[boostdawd]

Link does not necessarily "use" the wideband. It is mostly there to capture the values so u can fine tune your air fuel ratio. It will help u change your airflow scaling to target a specific afr whether it's 11.1 or something else.

 

[doubleclutch]

the wideband signal does not get used in for running the vehicle unless you tell it to use the wideband for narrowband simulation