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Thread: Anyone using a SMEC with the 0-1V output from a wideband?

  1. #1
    Supporting Member Turbo Mopar Contributor jonnymopar's Avatar
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    Anyone using a SMEC with the 0-1V output from a wideband?

    Just as the title says. I have a 0-1V output available on my wideband, but I haven't messed with it since it made the car run absurdly rich with the first cal I was running. I'm running a BoostButton cal now. Is anybody using an aftermarket cal (or a stock cal for that matter) and using only a wideband sensor instead of running a separate stock sensor to feed the ECU?
    Jon J.

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  2. #2
    turbo addict
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    I'm using the 0-1V output on my AEM UEGO on my LM.

  3. #3
    Garrett booster
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    I'm using the LC-1's narrow band (0-1V) output to the SMEC with a T-SMEC 16.9 calibration in my Turbo Van. Runs great. Gas mileage is Ok I think. It's been setup that way for a few years but lately I have been daily driving it since mid April.

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    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    I have used one on a couple of cars. I had a PLX wideband.

  5. #5
    Supporting Member Turbo Mopar Contributor Turbo Joe's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    i also run the innovative LC-1 using the 0-1v output wired into my sbec. works great!
    Turbo Joe
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  6. #6

    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Not with SMEC, LM but I have it hooked up. I've seen some intermittent rich situations, but unsure what triggered the issue, electrical or the wideband. I have a new one on order to arrive today, so we'll see if the wideband went bad and snowballed to where it has gotten to, which is running pig rich for extended periods of time or something else, if the problem persist. It's from a Zeitronix system and I'm fairly certain it's a Bosch O2.
    [SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]

  7. #7
    turbo addict
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Im using the 0-5v output from my wideband hooked to the Smec in my van. The Turbonator code has an internal function to convert the signal to a narrowband signal. You then can log the wideband signal using MPscan.
    Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]​engine slowly evolving into weekend turbo beater.

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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Quote Originally Posted by shackwrrr View Post
    Im using the 0-5v output from my wideband hooked to the Smec in my van. The Turbonator code has an internal function to convert the signal to a narrowband signal. You then can log the wideband signal using MPscan.
    this!!!
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  9. #9
    Hybrid booster
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Doesn't that only work with certain wide bands?

  10. #10
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Quote Originally Posted by krut View Post
    Doesn't that only work with certain wide bands?

    Because I was helping rob test the code the default values in the cal are setup for a TechEdge wideband but the table is fully adjustable. Just pick your AFR at 0v and Pick your AFR at 5v and make the line linear.
    Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]​engine slowly evolving into weekend turbo beater.

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    Supporting Member Turbo Mopar Contributor jonnymopar's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Quote Originally Posted by shackwrrr View Post
    Im using the 0-5v output from my wideband hooked to the Smec in my van. The Turbonator code has an internal function to convert the signal to a narrowband signal. You then can log the wideband signal using MPscan.
    Very interesting! Is it a different pin, or is it the same pin for the normal O2 input?
    Jon J.

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  12. #12
    turbo addict Turbo Mopar Contributor
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    And a nice way to wire it in is to cut off the connector side of an old o2 sensor and splice into that rather then touching your actual harness. Then you are plug and play.
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  13. #13
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Quote Originally Posted by jonnymopar View Post
    Very interesting! Is it a different pin, or is it the same pin for the normal O2 input?
    Same pin...

    - - - Updated - - -

    Quote Originally Posted by Ondonti View Post
    And a nice way to wire it in is to cut off the connector side of an old o2 sensor and splice into that rather then touching your actual harness. Then you are plug and play.
    That's exactly what I did.

    There's a 'Spartan' Wideband available from 14point7. The controller is built into the cable. If you don't need/want a WB Gauge (IE, just want to log it with MP Scan), it would be a great budget way to get a WB.

    http://www.14point7.com/products/spartan-lambda-sensor
    https://db.tt/SV7ONZpQ
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    Supporting Member Turbo Mopar Contributor jonnymopar's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Quote Originally Posted by ShelGame View Post
    There's a 'Spartan' Wideband available from 14point7. The controller is built into the cable. If you don't need/want a WB Gauge (IE, just want to log it with MP Scan), it would be a great budget way to get a WB.

    http://www.14point7.com/products/spartan-lambda-sensor
    Good info Rob. I'm actually using their JAW wideband from 7 years ago, which has a two outputs, a 1V for emulation and a 5V for logging. Not the prettiest thing, but it was the only thing I could find under $100 back then. Plus, I didn't mind assembling it myself.
    Jon J.

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  15. #15
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Quote Originally Posted by Ondonti View Post
    And a nice way to wire it in is to cut off the connector side of an old o2 sensor and splice into that rather then touching your actual harness. Then you are plug and play.
    Exactly how I did it, If you had one that was integrated into a cable like the innovate or other styles, you can even use the heater circuit and grounds to power it up.
    Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]​engine slowly evolving into weekend turbo beater.

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    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Hmmm interesting.
    Mental note to look into this as an option on the van.
    Wayne H.

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    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    I think i may revisit this and give it a try.
    Wayne H.

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    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    This is what i did so far to prepare MeanMini's v19.6 cal for the WB2NB function...
    My MTX-L is 0v = 7.35 AFR and 5v = 22.39 AFR.
    It sounded like that is all what mentioned earlier in the thread.

    Its the offset i really wasn't sure about. I was thinking it might be better to start off close to 0 offset.
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    Wayne H.

    '91 Dodge Spirit ES 2.5L turbo 5spd
    '05 PT GT 2.4T HO autostick (RIP)
    '89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
    '89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
    MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
    and other cars, trucks and motorcycles
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    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    You don't want to adjust that first pictured table. That converts the measured AFR into a simulated NB signal for use in the O2 feedback control.

    You only want to adjust the WB voltage to AFR table.

    The offset will only affect part throttle. You can use it to force the ecu into running richer or leaner in closed loop.
    https://db.tt/SV7ONZpQ
    Rob Lloyd
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  20. #20
    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Anyone using a SMEC with the 0-1V output from a wideband?

    Ok, I'll put that one back. Its ok though if the graph doesn't include the same AFR range? It used to only have 19.xx for the maximum value of the x-axis.
    Wayne H.

    '91 Dodge Spirit ES 2.5L turbo 5spd
    '05 PT GT 2.4T HO autostick (RIP)
    '89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
    '89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
    MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
    and other cars, trucks and motorcycles
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