ECMlink cant get it to idle or pickup wideband

[robertseber]

I have a mtx-l wideband hooked up from yellow wire coming from gauge to pin 76 rear o2 sensor i cannot get it to work to log in ecm link i have changed settings in link from lc1 to linear cant get it to work on either.

And also i cant get it to idle it without workin the throttle and my wideband says it super lean at idle i have fuel and timing zeroed out in link could you please look at my log and offer some advice im a total newb at this thanks for the help.

Just a little more information on the car

97 eclipse gst
dsmlink v2
mtx-l wideband
7 bolt engine
stock 450 injectors (for know i have some rc 750 and venom 720 that ill use when i figure the tuning out)
stock unhacked 2g maf
stock intake manifold
rewired stock fuel pump

 

[c2ypt1c]

I have a mtx-l wideband hooked up from yellow wire coming from gauge to pin 76 rear o2 sensor

pin 76 is the front o2 signal...did you mean 75?

And also i cant get it to idle it without workin the throttle

It's hard to say what's going on. You're not logging very many values. Read this: http://www.dsmtuners.com/forums/ecmlink-tuning-log-file-advice/444831-list-values-log.html

Since you're running v2, you can't use the built-in narrowband sim that v3 offers. So...assuming the wideband is indeed wired to pin 76, I suggest:
- Swap the yellow MTX-L wire to pin 75,
- Re-connect the stock front o2 white wire to pin 76
- Log more values
- Re-post log...

 

[snowborder714]

pin 76 is the front o2 signal...did you mean 75?

Looks like he may have wired it to the front o2 sensor as there's no signal coming in.

It'd also help if you actually logged the wideband so we could see what's going on with it.

 

[robertseber]

I did mean pin 75 i apologize here is a new log with more options i got the idle working pretty good but still cant get the wideband to work in link i have set it as lc1 and linearwideband both.

I apologize for the pin 75 mix up i didnt have the wire cut that went to the rear o2 just had sensor unplugged but since then i snipped the wire same thing.

And i also notice my front o2 isnt cycling like it should.

Thanks for the help fellas.

I also hooked up the grounding strap from my exhaust thinking that would help the front o2 issues but it didnt help.

Im checking and making sure i got all of the logs showing in the post you provided now will have them all up in a second.

 

[snowborder714]

If you want to use linear wideband, you need to set the upper and lower limits for the wideband (double click on the wideband value below the graph). Or just switch back to the LC-1 option.

Where's the sensor in the exhaust - rear o2 bung? If so, I'm assuming you don't have a cat.

Have you properly calibrated the sensor?

Does the gauge read correctly?

 

[robertseber]

If you want to use linear wideband, you need to set the upper and lower li lmits for the wideband (double click on the wideband value below the graph). Or just switch back to the LC-1 option.

Where's the sensor in the exhaust - rear o2 bung? If so, I'm assuming you don't have a cat. The sensor is probably 6 inches below the front o2 sensor

Have you properly calibrated the sensor? Yes 3 times now you are meaning per the sensor correct and not through link correct

Does the gauge read correctly?

I believe it does

In maf comp it has template options none, hacked 2g, evo 8, stock 3g which should i be on the none one i have stock 2g maf


Just changed it back to lc1 and it still is staying at 7.3 to 1 and not moving at all.

Latest log at bottom.

 

[snowborder714]

Just use none - it's just for a template. You'll have to adjust these points as you get further into tuning.

 

[robertseber]

Just use none - it's just for a template. You'll have to adjust these points as you get further into tuning.

O.K. thats what i had it set on this is proving to be a little more difficult then i had first anticipated im sure the more i use it the more i will get the hang of it. I really appreciate u guys loaning me a hand on figuring this out.

Any idea's on the wideband I'm just wanting to make sure the link software is setup right and that its not a wideband problem.

Is the narrowband switching like it should be all the logs I've looked at look different on the narrowband.

 

[snowborder714]

Your narrowband isn't switching at all.

I'd like to see a few things.
1. A listing of how you wired the MTX-L up.
2. A picture of where you input the MTX-L yellow wire into the ECU.

 

[robertseber]

I got wideband up and going and figured out my narrowband wasnt switching like normal because it was running lean i appreciate all your help though.

 

[snowborder714]

What did you do to solve the wideband issue?

 

[robertseber]

I will post a log when i get my bigger injectors afpr and walbro in.

What did you do to solve the wideband issue?

I chased it down with a multi meter it ended up being a clamp on connector the ones where you put two wires in and clamp it closed. Since i cut the wire going to sensor i just attached a butt connector and now its working great. Very close reading to my gauge also.