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Onboard Wideband TTLink 1.5


TvE

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Hello there!

I am totally new to the Link community, I did all my previous tuning on factory ECU's (Bosch ME7).
Since the project has very little OEM parts, I decided to switch to the Link pnp ecu for the 1.8T engine (TT Link). I have done some research, but cannot obtain a solution for my issue:

I have a WBo2 connected to my factory wiringloom (MY2000+ 1.8T), and I would like to use this through the pnp ecu. However, the basefile comes with narrowband set up as standard. I have tried changing it to Lambda1, but then there is no response. If I keep it at narrowband, it reads a voltage (0-1v). Maybe I have a 4.2 sensor? Are there ways to make use of it, or do I need to install a new 4.9 sensor and rewire the harness? 

I have an old Innovate controller laying around that i could use for the moment, but was really hoping to just plug n play...

Regards, Tijn

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Did you check your model # to confirm which one you have ?

Usually a wideband will provide output lead. 

You can hook it up to AN Volt input and scale it as per the manual using a Cal table or if you lucky enough from the pull down menu. 

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I researched the number and it turns up as LSU4.21. However, if it is not supported by the ecu I cannot get any real values from it, right? The measured voltage is the measurement cell but the wideband data comes from the pump cell. My innovate calibration is in the drop down menu, so that should work. But the real question now remains: If I hook up a 4.9 sensor to the OEM harness, will the TT Link recognize it or do I still need a seperate controller?

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Not really such thing as "not supported".

If it has an output lead you can scale that using a cal table. 

Usually is 0-5V 

You'd need to know the scale.  (from the manual)

I'd upload a pic but seems l"ve reached my upload limit. 

 

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The late model TT's have a wideband sensor connected directly to the ECU from the factory, the early model TT's (that the plug in was originally developed on) only had a narrow band sensor from factory.

So it sounds like he has a late model car with the factory wideband wired direct to the ECU, but the ECU doesnot have an onboard controller for a wideband.  The factory sensor can be re-used, but it will need a 3rd party controller connected between the sensor and ECU.

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Thanks for the clarification Adamw! It's a shame it doesnt control the wideband by itself, but luckily I still have my old LC-2 controller, so I'll wire it in.

If this is final, Link should change the description of this PnP ecu though:  on the website it lists "Built in Wideband controller" under analog inputs. http://dealers.linkecu.com/TTX

 

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26 minutes ago, TvE said:

If this is final, Link should change the description of this PnP ecu though:  on the website it lists "Built in Wideband controller" under analog inputs. http://dealers.linkecu.com/TTX

That page is for the G4X - although Im not even sure if the X does have an onboard controller.  Here is a copy of how the same page read when the G4+ was the current model:  http://web.archive.org/web/20180524092028/http://dealers.linkecu.com:80/iPA1_2

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