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AEM / Innovate peeps


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Galant VR-4 org Post #: 1212446 posted 07/15/15 08:30 PM     Remind Me!  Send Private Message   Edit Post      
I recently switched from a old uego to a innovate mtx-l >> click I'm trying to update the o2 #1 cal table to the innovate specs of 0v/ 7.35 - 5v/ 22.39 but either the range of my v1.5 won't go that high or i'm doing something wrong. Hopefully someone has done this already? Also my cal table only goes to 4.99v? When I try and change 4.99 to 22.39 it will only change to 9.68.












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transparentdsm
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Galant VR-4 org Post #: 1212452 posted 07/15/15 09:00 PM     Remind Me!  Send Private Message   Edit Post      
is the switch set to running gasoline? like on the uego there is the switch in the back, does this have the same? only thing i can think of.



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Galant VR-4 org Post #: 1212465 posted 07/15/15 09:45 PM     Remind Me!  Send Private Message   Edit Post      
No, the innovate doesn't.



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EfiniX
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Galant VR-4 org Post #: 1212477 posted 07/16/15 05:26 AM     Remind Me!  Send Private Message   Edit Post      
(Caveat: Not sure of the software you are using, so I might be interpreting your issue incorrectly)

This bit

"Hopefully someone has done this already? Also my cal table only goes to 4.99v? When I try and change 4.99 to 22.39 it will only change to 9.68."

is a touch confusing. As you say, the voltage range of the MTXL is 0-5v, and the AFR range is 7.35:1 to 22.30:1. The voltage (between 0-5v) received by the computer translates directly to the AFR value it sees. It sounds like you are trying to change your voltage from 4.99 to 22.39? Of course one is a voltage, and the other is the max air volume value.

On my setup (ECMLink w/ MTXL), I'm using a LinearWideBand configuration. I did this because the value I was seeing on the gauge (correct) was about 0.5:1 lower than the value I was seeing in the link software. A minor adjustment to the minimum voltage value brought the DAC output inline with the gauge output.



Here you can see what the raw voltage and AFR looks like at WOT...



...and at full vac with my foot off the gas



The point is that your voltage should never be configured over 5v. 4.99v is fine, and if you see drift between your gauge and your computer, adjusting the minimum and/or maximum values is how you can get things synced up.

What's the software you are using? I'm applying my own logic from using link, but I don't know how it translates to your tool. And forgive me for over-explaining. You clearly know how the sensors work, but I like to put in extra info in case someone else who's new to all of this happens across this post.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)


Edited by EfiniX (07/16/15 05:33 AM)

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Galant VR-4 org Post #: 1212479 posted 07/16/15 07:32 AM     Remind Me!  Send Private Message   Edit Post      
I'm using aempro. No, i'm trying to change the afr from 8.82 to 22.39. I was able to change 4.42 to 7.35.



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EfiniX
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Galant VR-4 org Post #: 1212490 posted 07/16/15 09:48 AM     Remind Me!  Send Private Message   Edit Post      
That still sounds suspect, though. I mean at what point are the starting value AFR's at 4.42 or 8.82? Both of those values are more rich than any gas engine should ever run. It just seems way more likely to me that those would be voltages or some sort of raw values (requiring conversion).

*checks web*

well there's a setting for gasoline engines in the software itself. I'm guessing there's just a missing piece somewhere in this process:

click



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)


Edited by EfiniX (07/16/15 09:51 AM)

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Galant VR-4 org Post #: 1212500 posted 07/16/15 10:53 AM     Remind Me!  Send Private Message   Edit Post      
That may be it, i'll check it when I get home.



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www.nostalgic.co.jp

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Galant VR-4 org Post #: 1212565 posted 07/16/15 10:10 PM     Remind Me!  Send Private Message   Edit Post      
I think I got it. Though it still doesn't go up to 5 volts and the richest afr I can go is 7.38. Leanest afr I can go is 21.90. Innovate says to plug in 7.35 - 22.39.




www.japanesenostalgiccar.com
www.nostalgic.co.jp


Edited by G (07/16/15 10:16 PM)

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Galant VR-4 org Post #: 1212601 posted 07/17/15 10:25 AM     Remind Me!  Send Private Message   Edit Post      
honestly, that should be fine. You can tweak your voltages once your base tune is in place. Do you have a gauge? That will report the real AFR and your adjustments in software basically will serve to tweak the voltage values coming into the computer off the WB DAC.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

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Galant VR-4 org Post #: 1212626 posted 07/17/15 01:39 PM     Remind Me!  Send Private Message   Edit Post      
Yeah I have a gauge. I think that range is beyond the capabilities of the v1 aem. I could just adjust the range on the WB to match the capabilities of the aem I think.



www.japanesenostalgiccar.com
www.nostalgic.co.jp

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EfiniX
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Galant VR-4 org Post #: 1212919 posted 07/21/15 08:52 AM     Remind Me!  Send Private Message   Edit Post      
That should be just fine. Remember, the gauge is the actual AFR, and what the computer sees is the signal after it's going through the DAC in the gauge. so tweaking the voltages in your software affects the way the signal from the DAC is interpreted and allows you to calibrate your what the computer sees against what the DAC sends.



RIP 543
Ded click
2006 Suzuki SV-650 (for sale)
2011 BMW 335d (~510'lb/tq and 36mpg. hwy. How can you go wrong?)

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swe_gvr4_1991
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Galant VR-4 org Post #: 1212968 posted 07/21/15 03:47 PM     Remind Me!  Send Private Message   Edit Post      
That cal table is totally messed up.
You should have a linear scale from lowest AFR to highest. Look at your 2 left most cells. They have a huge jump. Your resolution is going to be awful at best.



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Galant VR-4 org Post #: 1212985 posted 07/21/15 09:53 PM     Remind Me!  Send Private Message   Edit Post      
Correct, that scale is from the old uego. I only changed the richest & leanest points. Trying to figure out how to get everything in the middle to fall in to place by just changing those 2 fields. I'm assuming I have to highlight the section in between & hit calculate?



www.japanesenostalgiccar.com
www.nostalgic.co.jp


Edited by G (07/21/15 10:18 PM)

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Galant VR-4 org Post #: 1213028 posted 07/22/15 01:19 PM     Remind Me!  Send Private Message   Edit Post   
Set your highest and lowest point in the table like you have been doing, then open the graph and make the line straight from point to point.
That will give you a perfect linear reading, which is what you are after.

The issue with the Aem ems not letting you choose an afr low enough or high enough is not a big deal, it gets damn close and you can adjust the gain to compensate.

The quick way to adjust the gain is to get the car idling at a stable afr and watch you afr guage and the laptop reading at the same time and adjust the gain till they are close. The better way to do it would be to do two logs at the same time, one log using the aem logger and the other using the LM logger, and look at the afr readings at the same points.

Robbie



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