Is it possible to connect the analog 0-5v wire from Lc-1 wideband to Openport 2 without using the rear O2 sensors wiring? It would be nice to use another wire and connect he analog 0-5v to maybe the OBD2 port or straight to some other wire on the ECU and still keep the emissions o2 sensor.

Maybe I'm wrong but my understanding is if you do the rear o2 patch emissions data doesn't log anymore and here we have to pass emissions. My rear o2 sensor has to show READY if connected to a OBD2 reader to pass emissions. Would the patch disable this?
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There is a thread with a few EcuFlash settings to get your car to force pass the OBD-II test. Most people have had good luck with it.
I log my AFRs with a serial>usb cable that is separate from everything else. My rear O2 sensor is still hooked up and functioning (when not disabled). Is that what you are asking about?

 

I'm a newbie as far as Evo ecu flashing goes (messed around with a few standalone before only) so I have more questions than answers but I've been reading. People keep taking about TephraMod and flashing that ROM onto my ecu, my issue is the car I just bought was already tuned by AMS for 400whp so I don't want to lose that tune. I ordered the openport cable, I'll just have to see what I have on the ecu already and then go from there I guess.

As for the logging LC1 wideband using serial>usb, what software are you using to log? I don't want to use the LC-1 software as I don't think it can log RPMs VS AFR which is what I really want
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When you get your cable, you can read the ROM that's on the car now to see if it's a Tephra map. Most tuners use them, so you may get lucky.
As for logging, I use EvoScan. It has an option to read various widebands via USB. I'll post some pics tomorrow to show you what it all looks like.

 

Pics would be cool, much appreciated.

So your saying Lc1-serial>usb and EvoScan then reads & logs the wideband AFR, that I understand, but how does EvoScan know the RPMs? Or you have Openport cable and lc1-serial>usb both connected to the laptop?

I would like to have for example a graph or a log that says, at 1000rpms wideband AFR 14.00, at 1100rpm wideband AFR 13.8, at 1200rpm AFR 13.5 and so on so that I can adjust each RPM interval.
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2 cables... connect vehicle ECU to evoscan trough openport 1.3 and lc1 direct trough USB-serial.. works like a charm..

 

okay, it's been a while, but i believe this is how i did it:

The gauge controller has two "headphone jack" terminals. One is for serial out, i forget the other. The kit comes with a plug that you will need to put in the "other" spot so your serial output will work (I lost my plug for a while and had to use a modified headphone jack; it works in a pinch). Serial output will not work without the other end being capped.

Buy a serial -> USB cable. Be sure to buy one that is compatible with the Windows version you are using. The cable i had that worked for Windows 7 did not work for Windows 10, so i had to buy another. Windows should automatically install the drivers for the cable, once it's plugged in.

Once everything is hooked up and the USB cable is plugged in and drivers installed, you can start EvoScan. Now you have to adjust your settings to log AFRs from the LC-1.

1. You will need to click on "wideband WBD" as noted with the red arrow.
2. From the drop box, go down and click on the selection notated by the red "1".
3. This will open your Device Manager where you will expand the "ports (COM & LPT)" section and see which COM port your wideband is connected to, indicated by the red "2". It should say something along the lines of "serial to usb adapter", etc. mine says "Communications Port" because i wasn't connected to my car when i did the screen shot. In my case, my cable is connected to COM1, yours may be a different ComPort. Either way, just remember which port you are using.
4. Exit the Device Manager and go back to EvoScan.
5. Click on "Select Wideband Serial ComPort" (as indicated by the blued area in my picture), then select the ComPort you saw in Device Manager. (the red "3")
6. Select your wideband device (indicated with the black dot in the blue square).
**note: I'm not sure if it matters if you do step 5 or 6 first.

Now, you are wired up and EvoScan knows where the signal should be coming from. You can run a test log to confirm. If it's working right, you will see values in the "External Wideband A/F Ratio" portion of EvoScan while logging (the red "4"). Of course, you will need the WB sensor and everything else connected in order to test.

Once you are set up, it's all good and you shouldn't have to mess with it again.

As for the rest of the logging duties, that is all handled by your Tactrix cable. It will log everything else.

Hopefully I'm not forgetting anything. Oh, and i THINK you will need to use the same USB plug for the wideband, each time you log. If you plug it into a different one, i believe that changes the COM port so you will either need to swap usb ports or change the COM port in EvoScan.

 

Thanks for the pictures bud, can't wait to get my cable to play around with all the stuff.
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No problem. If you have any questions ask away. Or, if you really get stuck, a tuner can use your laptop remotely and expedite the process (assuming you have everything hooked up right).

jason