I just got my LC2 installed today. I have it installed in the o2 housing, obviously replacing the stock front o2 sensor. I wired up the wideband using these guidelines:

Red wire – 12v accessory power source (e.g. cigarette lighter or radio)
Blue wire – chassis ground
White wire - ECU sensor ground (pin 92)
Brown – split between DB gauge’s white wire and ECU pin 75 (ECU Pinout - http://www.dsmlink.com/images/forums/2GECUPinout.pdf)
Yellow – ECU pin 76 (ECU Pinout - http://www.dsmlink.com/images/forums/2GECUPinout.pdf)
Black – Calibration push button to monitoring LED to ground

There aren't any white or blue wires on the LC2, so I just wired the ones that I did have.

I'll say now that I did not calibrate the sensor like I should have. It's quite a hassle to remove my o2 housing while everything is bolted on the car, and I accidentally put everything back together without calibrating the sensor in open air. I saw several other forums said that if the car hasn't been started in over 24 hours then the sensor can be calibrated while still in the exhaust. I'm not sure how true that is, but my car had been off for over 24 hours so I tried it.

I also don't have a rear o2 sensor hooked up currently. I assume that might contribute to my problem.

When the car is idling, my AFR is around 7.5-8. When I stab the thottle, the highest number I see is around 10.5.

The car is also idling pretty rough, but will stay running.

My question is:

Do I need to do anything in EcuFlash or anywhere else to get my LC2 to simulate a narrowband properly? Also, is my method of calibration the reason I'm idling extremely rich?

Thanks

It looks like you used the LC-1 wiring diagram instead of the LC-2. It seems that Innovate reversed the function of the Yellow and Brown wires between the LC-1 and LC-2.

With the LC-2, the Yellow wire is the Wideband output (0-5 volts). The Brown wire is the Narrowband output (0.1-1.1 volts). NO ground wires should be connected to ECU pin# 92. All grounds should be chassis ground.

For narrowband simulation, the Brown wire MUST be connected to the Front O2 input (ECU pin# 76). For logging the wideband, the Yellow wire should be connected to the Rear O2 input (ECU pin# 75).

It looks like you just have to reverse the Yellow and Brown wire connections.

Jim

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Thanks for the reply! I switched the wires like you said and it now reads closer to what it should and runs better.

It's still reading around 12.0-12.5 at idle though. Stock injectors and evo 9 fuel pump. Should my setup be this rich at idle?

Is the o2 simulation working? It should cycle between 14-15 back and forth averaging to about 14:7.

My wideband or my Evoscan log?

My wideband stays around 12-12.5 at idle and one of the o2 selections in Evoscan (can't remember which one right now) is at around 1.8ish. So I know something isn't right.[DOUBLEPOST=1410660067][/DOUBLEPOST]I installed my FIC 950s and now I can't get the car to start. I'm using 950cc for my scaling and have tried .315-.330 for latency values and I can't get it to turn over. Any ideas?

I got the car to start. My idle is still super rich, sitting at around 10.5. Something isn't right with my narrowband simulation because my STFT is always around 24v. My fuel trims never move either so I can't really tune the idle.

I somehow managed to mess up all the settings in the LC2's software, so now I can't really do anything until innovate contacts me back.

Would I be better off getting a bung welded on my downpipe for the LC2 and running the stock o2 sensor in the o2 housing?