Im on a mission to wire my narrowband output from my Innovate to successfully aim my cruising closed-loop values to around 15.6 AFR for sweet fuel economy. Im ready to do this TODAY

I have been peeking at https://www.evolutionm.net/forums/ec...o2-system.html and I have a few questions, because I am aiming for the more simple route of just controlling closed loop via my narrowband simulator from my lc-1, and nothing else. So therefore:

Would I need to tap into my Front 02 sensor, Rear, or both? Where do I splice into it/them, and what values do I need to program in LM programmer?

I am currently logging AFR with my openport 2.0, and have no intentions of wiring my analog output into the rear 02 sensor for ECU logging. Dont need it



any help is appreciated!

 

Bamp. I'm thinking I should wire it straight into the ecu, anyone know what pin?

 

I'm running simulated NB with my LC-1. Seems to work pretty well so far.

Basically you need to cut the front o2 signal wire at the ECU plug, then replace that with the analogue output wire #1 (yellow) from the LC-1. So your stock front o2 wire no longer talks to the ECU - your LC-1 does instead.

Once you've done that, you open up the LC-1 programmer software and set the desired switch point for analogue #1.

Try these for AFR's around 15.7:1 when in closed loop.

.80v @ 15.55 AFR
.10 @ 16.3 AFR

Note that AFR's will swing around a bit more than with the stock front o2. Probably because the LC-1 sensor is further down the pipe than the stock sensor. But you should see leaner mixtures overall

 

Oh and the front o2 wire you need to cut is pin 71 on an Evo IX ECU. It's an all white wire I think.

 

thanks dude, exactly what I needed