Thread: Installing an LC-1 Wideband to be used with RTv2/TunerPro RTv5

Thanks to Dave for this information:

Install/wire your wideband per manufacturers instructions.

Using your 0-5vdc analog out from the wideband (brown wire in the case of the LC-1), connect it into the analog input of your choice. I chose to use analog input 0, being that I don't have any other inputs (blue wire on the input block).

Run the grounds from the wideband into the analog input ground (black wire on input block). For the LC-1, this is the blue and white wire. The sensor documentation specifies that you need to run these grounds to a system ground, so if you share the grounds from the reference of the analog input to the intake manifold ground, or wherever you happen to have grounded the system grounds, you'll be fine. I haven't wired mine like this, so I'll need to make the corrections to ensure that the wideband datastream into the ECU is as accurate as the gauge itself.

In TunerPro, enable emulation and set the flag for "Enable Analog 0 Input".

Using the ADX editor, under "Values", set the "RTV2 ANALOG 0" conversion factor to "x/50". Set the output format to "Floating Point" and the Output digits to 2. This will display the voltage.

The LC-1 conversion factor for AFR is (3*voltage) + 7.35, so set the conversion factor in the ADX to (3*x/50)+7.35 to display AFR in your datastream.

Save your work, and have fun! Remember, you can rename the input to something more familiar such as "Wideband input", or LC-1/LM-1, or whatever you prefer. Only change the first field to what you wish, though.

Pictures to follow.

@ pichers.

pichers? I don't see no pichers in my post?!

I have to do screenshots from the laptop when I get home. I'd take pictures of the physical wideband installation, but it's a rats nest under my dash so I'd rather not

I need to pull the stupid A/C system out from underneath the dash so that my in cabin wiring can be nicely tucked up in that location. Possibly even going to mount the ECU to the firewall there.

wow just copying my style haha

PFFT! I don't think so youngin'.

as for doing this with a aem uego wideband which has extra wires(5v) for datalogging.do i have this option or do i just sell it and get a LC-1 WB?

EDIT. Formula doesn't seem correct for the UEGO. Stand by.

EDIT 3: Removed the formula I posted here because I don't want to spread confusion. Dave posted below with the correct formula for the conversion factor.

The voltage to AFR conversion factor for AEM UEGO is (2*voltage)+10 so the conversion factor in TunerPro would be (2*x/50)+10.

Dave

Thanks Dave. I looked up the conversion table just a few minutes ago and was about to edit my post for the third time

i would recommend not grounding the Innovate o2 stuff to any ecu sensor grounds or ecu grounds. i did this with my AEM EMS and it fed noise into the ecu.it would cause my TPS water temp and several other things to fluctuate a good amount. i am using a LM-1's analog outs directly into the EMS. the grounds are wired to the chassis and the power for the LM-1 comes from a dedicated relay. def make sure you set the output correctly or your ecu wont see the right AFR.