victor25

Yeah it was very odd... the new WB is an LC-1, which has 2 analog outputs, and both are connected. One to the gauge and one to the NB input on the car. I am wondering if there is something wacky with the new LC-1. One of my first thoughts was that I just ooopsed and switched the outputs around. So I disconnected them and switched the NB and WB outputs, but nothing seemed to change??
What really made things wacky was the fact that it got leaner when I went to 19 lbs. The car has 36 lb injectors in it now, so switching to 19 should make it super rich, but it didnt!! it made it leaner??? WTH!!!
The biggest problem was that everyone was leaving and my laptop was out of juice. So he just drove it home at 12.5.... great for power, not mileage lol.

Jeff... I was just thinking as about this as I was typing the above. If you remember, the car ran great Saturday, purred like a kitten, and blasted boost when we blipped the throttle. So it has to be the new LC-1 is f'd up, because that's the only thing we did on Sunday. If you put the NB o2 sensor back in the car, all will be good
Aww ****..... it would be good if you had a shark tuner and could put the injector setting back to 36lbs. So I can either send you mine tomorrow, or you can contact Jim and buy one for yourself. Call me when you get a chance later

SeanR

Why are you not using the NB for the LH/EZK and the WB for the ST/gauge?

Ducman82

Lack of bungs is my guess. But you can use both functions as stated above. Prob just miss wired

928mac

Jim, what is the AFR that a 5L runs the best at?
on thats video I saw it idling around 16 to 17
I believe mine is rich at 11.5 to 12.5
also, what is the max cruising ign timing and
max WOT ign timing ... say between 5000 - 6500 rpm

Ducman82

A SC motor will behave a bit diff than a non Sc motor. Mine idles at 14.7. 26adv at 5300 for me

jcorenman

The Innovate LC-1, out of the box, has analog-1 (yellow wire) configured as simulated-NBO2, and analog-2 (brown wire) configured as wideband AFR, with 0v=7.35 and 5.0v=22.39. This can be reconfigured with the setup software, but if no one has messed with it then the brown wire goes to the gauge and Sharktuner. And, if needed, connect the yellow wire to the harness O2-sensor connector, to get the NBsim signal to the LH.

You can also check these two signals with a voltmeter, NBsim (yellow) should be 0.1v (lean) or 1v (rich), WBO2 (brown) should be wandering around in the 2-3v range if the car is running normally.

And don't forget to check that Sharktuner's WBO2 input is set to the same AFR range (Tools menu, "WBO2 law").

Note that these colors are for the LC-1, when Innovate did the MTX-L digital gauge/controller they reversed those two signals...
Cheers, Jim

jcorenman

The video is our S4, and AFR at idle is controlled by the LH to hover around 14.7 (based on the NBO2 sensor). In the video the AFR is bouncing around between mid-14 and low/mid-15's. An aging NBO2-sensor will cause it to run a few tenths leaner. This car has an x-pipe with separate NBO2 and WBO2 sensors.

You can see O2-adjust moving between -8 and -13%, roughly-- this is how much fuel the LH is adding (subtracting in this case) from the map values in response to the NBO2 input. So the map (when I did this) was set a bit rich.

If you are running open-loop (no NBO2-sensor correction) then I think you will find the engine is happier and runs more smoothly in the 13-14 AFR range, but emissions are higher and the cats (if fitted) won't like it.

Ignition advance depends on the engine-- CR, cams, cam timing, carbon, etc. Factory numbers range from 29-31 deg at the top end for S4's to around 27-28 deg for GT's. Our GT doesn't like more than 24-25 deg at the top end (bigger cams).

FredR

Jim,

Interesting observation. You may remember some time ago I advised I was having osme issue swith top end pinging and had to run about 24 degrees which miffed me a bit. Now you have me wondering whether running with the GTS inlet cam had had a bit more impact in that department? [Hope I am not off topic/derailing thread here].

One thing I can advise is that tickover seems a bit less bump when the AFR is at 14.0 whihc seems to correspond with the 0.5% CO spec.

Regards

Fred

victor25

Yes he is running stock exhaust, so there was only one bung.

Jim... in the limited time we had Sunday, I did put a meter on the LC-1 analog outputs and they weren't as different as I would have expected. Meaning volts on the brown and yellow wires. I am thinking the simulated NB simulation is messed up. If I was thinking correctly then, I should have just switched to open loop and had him drive home that way!! But I wasn't
We have a clear plan of attack now.

Rob Edwards

Jeff-

http://www.ebay.com/itm/O2-Sensor-Nu...8b680b&vxp=mtr


Any muffler shop ought to be able to weld a new bung into the driver's side downpipe in the cat for chump change. I took my cat to Greg's fabricator while it was off the car and he did it for $10. If you do it on-car, be sure to unplug the LH and EZK brains before any welding happens......

Or perhaps it's time for an X-pipe, which will have two bungs.

Or perhaps a bigger exhaust to really let that SC breathe:

jeff spahn

Jim and I got the wiring fixed today and it is running between 13 and 16 now. I ordered at Sharktuner and we will tune it back to 36# injectors and see what we can do and I'll look over all the readings from the sensors. New Temp II pigtail will be here Wednesday or so.

Now to fix the headlight problem I just had happen . .. see that thread..... making me crazy.