You need to make sure that all the wiring is correct. Trace each wire as needed until you are sure of what's connected to what.

In particular, make sure there is *nothing* else coming into the ECU input other than the MTX-L output.

I just heard back from Innovate with confirmation that a 1+ second response time is highly unusual. He basically said he had never heard of that happening before but if they needed to, he'd be willing to RMA the unit back for testing. I told him it seemed like we needed to do more debugging on this end first.

He did suggest trying to hookup their configuration software directly to your MTX-L unit and make sure that response time screen is configured to 1/12 second update rate. Maybe even change it to 1/3, hit save and then change it back to 1/12 and hit save again to make sure it's got something to do.

Thomas Dorris

That ECU pin should only be hooked up to one wire - the yellow wire from the wideband. Anything else (including those grounds - no idea why they are there) should be removed.

Calan said:

You need to make sure that all the wiring is correct. Trace each wire as needed until you are sure of what's connected to what.

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The plx was wired this way. All I did was tap the wb into pin 4. What else would use the oxygen signal? If I can't trace them, should I unhook them and where there any kind of heat stip insulated in the harness?

I'll be taking another look when I get home, just need your opinion on what to do if I can't trace.

spadepro22 said:

The plx was wired this way. All I did was tap the wb into pin 4. What else would use the oxygen signal? If I can't trace them, should I unhook them and where there any kind of heat stip insulated in the harness?

I'll be taking another look when I get home, just need your opinion on what to do if I can't trace.

Click to expand...

Tom and Brian both just answered that for you.

twdorris said:

In particular, make sure there is *nothing* else coming into the ECU input other than the MTX-L output.

Click to expand...

snowborder714 said:

That ECU pin should only be hooked up to one wire - the yellow wire from the wideband. Anything else (including those grounds - no idea why they are there) should be removed.

Click to expand...

I would try to trace it first, but I dont really know what it would be for. The MTX-L needs clean single connections, especially the ground. Did the car have something aftermarket on it when you got it? like a SAFC or anything?

I disconnected all the wires that were on pin 4. Only one wire there now. Is the wb reading right?

Nope. Still seeing that 1.15 second sample interval.

Calan said:

Nope. Still seeing that 1.15 second sample interval.

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Dang, there is nothing else I can change.

Is this where I get to come in and say "I told you to get the LC-1"?


I'd talk with Innovate to at least RMA it.

You can always put a stock front o2 sensor back in, turn off simulated NB, and at least get idle/cruise dialed in. I actually prefer to run a stock front O2 along with a wideband (if you have enough free ECU inputs), so that you can check them against each other.

Last log. Is it still the same and what I'm I looking for?

spadepro22 said:

Last log. Is it still the same and what I'm I looking for?

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I can't view your log right now, but you're looking for the same thing we've been talking about all day. You want a WB signal that looks similar to the first image I posted, and not like the second.

Hey Calan, I think I got it. There was no default response selected from the factory.

That definitely looks more like a wideband in the 06 log. What does "no default response selected from the factory" mean?

But...now your simulated O2 signal isn't firing consistently.

EDIT:

Your CombinedFT is maxed out, and the simulated O2 is only switching when AFR drops low enough to cross the trigger point. You need to add some fuel or raise VE cells enough to get the fuel trims within their working range.

Calan said:

That definitely looks more like a wideband in the 06 log. What does "no default response selected from the factory" mean?

But...now your simulated O2 signal isn't firing consistently.

EDIT:

Your CombinedFT is maxed out, and the simulated O2 is only switching when AFR drops low enough to cross the trigger point. You need to add some fuel or raise VE cells enough to get the fuel trims within their working range.

Click to expand...

When I went to look at the response time setting, nothing was selected, so I checked 1/12. Do I need to 0 out combft and fuel sliders, then go from there before I add fuel? Ecm set link up at 315 deadtime, but for fic's it says 350, do I need to change that also?

Well went ahead and zeroed out combft and fuel and took a cruise. There is also idle at the end of the cruise starting around 245.470 of the log. Got combft down, and airflowperrev needs to come up. Let me know what adjustment to make. I'll post back tomorrow, I've had enough for today. Thanks guys. Oh yea the 02 sim is working now also.

spadepro22 said:

When I went to look at the response time setting, nothing was selected, so I checked 1/12. Do I need to 0 out combft and fuel sliders, then go from there before I add fuel? Ecm set link up at 315 deadtime, but for fic's it says 350, do I need to change that also?

Well went ahead and zeroed out combft and fuel and took a cruise. There is also idle at the end of the cruise starting around 245.470 of the log. Got combft down, and airflowperrev needs to come up. Let me know what adjustment to make. I'll post back tomorrow, I've had enough for today. Thanks guys. Oh yea the 02 sim is working now also.

Click to expand...

Im still seeing your fuel injectors set up for 693cc and base fuel pressure of 43psi. You also need to set your prefrences so that your afRatioEst matches the wideband. To do that right click one afratioest and edit the prefrences for min and max. Then do a idle log and get your airflowperrev up and your combinedft close to 0%.

You also should zero out your timing sliders.

red_devil said:

Im still seeing your fuel injectors set up for 693cc and base fuel pressure of 43psi. You also need to set your prefrences so that your afRatioEst matches the wideband. To do that right click one afratioest and edit the prefrences for min and max. Then do a idle log and get your airflowperrev up and your combinedft close to 0%.

You also should zero out your timing sliders.

Click to expand...

Where are you seeing my injectors set to 693cc and base fuel pressure 43? When I hit the fuel tab, then calculate, it says 748cc and 37 base. I made some changes to the airflowperrev and combinedft and didnt have any luck. Here is another log.

I matched up afratioest to wb and zeroed out timing. Fuel and mafcomp still zeroed out also. I tried make changes but the combft doesn't do anything. Latest log.

Your CombinedFT looks fine to me. Bouncing around 0% is where you want it.

Is airflowperrev ok? It fluctuates from .23-.26. It's seems to be .24, .25 most of the idle time. What's next also?

Looks ok to me. Go do a cruise log and report back. Try to stay steady on the gas, I tend to do a log at 30mph, 50mph and 70mph, keeping it as smooth as I can, then right click and select MafCompAdjust to give you the recommend points.

Your coolant temps are at 213 do they drop after a while when the fans come on?

red_devil said:

Looks ok to me. Go do a cruise log and report back. Try to stay steady on the gas, I tend to do a log at 30mph, 50mph and 70mph, keeping it as smooth as I can, then right click and select MafCompAdjust to give you the recommend points.

Your coolant temps are at 213 do they drop after a while when the fans come on?

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They do drop, that was probably from me just setting. I'll do some cruise logs and report back tomorrow, its about drinking time

Calan said:

No, I'm talking about the actual WB signal itself; not the front O2. His LC-1 is putting out the wrong waveform for an analog WB signal. The voltage is correct, but the waveform is wrong.

Normal WB signal:

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OP's WB signal:

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OP - Have you changed the programming in the LC-1? I'm not familiar with it (or what you can do with it software-wise), but it looks like you are logging a narrowband signal that for some reason is switching in a 0-5v range. I have no idea why this would be, but it definitely looks that way.

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I've been following this thread since i bought my Innovate Mtx WB and Ecmlink V3 dreading it would happen to me when i installed mine. And wouldn't you know it it has.
Its super choppy (looks exactly like what calan posted above) and sometimes 1-3 secs between wave lenghts. I seriously doubt its a coincidence that both our WB's are flawed. Mine is brand new and only been installed less than 2 weeks.
I have absolutely nothing going in or coming out the ECU except the yellow wire from the WB to narrow band sim hooked to pin#4. Has anybody figured come to a conclusion about this

Calan said:

That definitely looks more like a wideband in the 06 log. What does "no default response selected from the factory" mean.

Click to expand...

Sorry im sucking today guys, i missed this post , can you specify how you went about changing this? More specifically did you fix it through Ecmlink or Innovate software and cable?

Looking at the screenshot from the manual, it looks to be in the LM Programmer software from Innovate.