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Originally Posted by Atlanta93LE
(Post 164101)
Here is my PalmLog Environment Setup, as requested. It works for me on my MSPNP MM9093, but I cannot guarantee the values. In fact, I can't remember how I got all of them. I did a bit of reading on the msefi forum.
MAP-Off: 9.0 Map-Sc: 0.984 C-Bias: 2490 A-Bias: 2490 Cool-A: 1.222E-3 Cool-B: 2.776E-4 Cool-C: 4.196E-8 Air-A: 1.506E-3 Air-B: 2.250E-4 Air-C: 1.247E-7 WB-Off: 10.00 WB-Sc: 2.00 RTU Char: R Bytes 39 I have my "boost in psi," "Fahr," and "diywb" boxes clicked; I am using the Techedge diywb. Sensor datasheet here: http://www.freescale.com/files/senso...50A.pdf?fpsp=1 |
Haha, awesome! That's something I need to visit next.
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Originally Posted by Ben
(Post 166294)
OK, I believe all of the above is correct except for the MAP sensor offset and scale. The offset should be 20kPa and the scale should be .961 kPa/ADC.
Sensor datasheet here: http://www.freescale.com/files/senso...50A.pdf?fpsp=1 Still new so there's a possibility that Megatune is off too. =/ (just have the MAP set up in the Configurator, nothing more that I know of) |
Those are the 2.5 bar settings.
You have a 4 bar sensor, right? 4 bar settings: https://www.miataturbo.net/megasquirt-18/whos-got-mapdaddy-13504/ |
Originally Posted by Ben
(Post 166294)
OK, I believe all of the above is correct except for the MAP sensor offset and scale. The offset should be 20kPa and the scale should be .961 kPa/ADC.
Sensor datasheet here: http://www.freescale.com/files/senso...50A.pdf?fpsp=1 scale .964 offset 9.108 It has nothing to do with my math being faulty earlier. It has to do with my faulty assumption that MegaTune's kpafactor file is accurate. :mad: Of course, looks like I DID get the slope right (I'll consider 3 thousandths of error to be more than acceptable for this assignment). The error ends up being in the offset. Somebody with a 2.5 bar, try it and report back. |
Well, I had been using offset of 9 and scale of 0.984, and hadn't noticed any discrepancy. I'll give 9.108 and 0.964 a try and see how much of a difference it reads.
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Originally Posted by Ben
(Post 166446)
After learning more data... These numbers should be more correct than anything posted previously
scale .964 offset 9.108 It has nothing to do with my math being faulty earlier. It has to do with my faulty assumption that MegaTune's kpafactor file is accurate. :mad: Of course, looks like I DID get the slope right (I'll consider 3 thousandths of error to be more than acceptable for this assignment). The error ends up being in the offset. Somebody with a 2.5 bar, try it and report back. Now my last discrepency is my CLT. Reading 33 on the palm and 45 in MegaTune. Stock Mazda sensor, wondering if I have the coolant settings wrong. (using what's up there) Using AusieDriver's EasyTherm settings of: -4F 16200 86F 2450 176F 384 Any clues? |
I pulled those Cool-A,B,C values from the easytherm file using the MSPNP inputs of:
-4F 16150 104F 1150 176 320 A= 1.222495E-03 B=2.775695E-04 C= 4.196125E-08 (from MSPNP9093 w AFM thermfactor.ini). However, with: -4 16150 104 1150 176 330 A= 1.131957E-03 B=2.943506E-04 C= -3.725285E-08 (from MSPNP9093 w/o AFM thermfactor.ini) Looks like my AIR values for MAT are screwed up as well. I can't figure out where those values came from, but the GM IAT sensor I'm using (AFM delete) should have Air values of : A= 6.034498E-04 B=4.181235E-04 C= -1.094738E-06 (from MSPNP9093 w/o AFM matfactor.ini). I can't seem to find an appropriate matfactor.ini for use with the AFM...they all seem to have the same values as thermfactor.ini. Do the stock CLT and IAT (in AFM) sensors have the same temp/resistance relationship? :dunno: BTW: I'm glad some more people are jumping on this. Makes me revisit all the screw-ups from rushing this to make it "work," or rather show that it could work ;) |
Air-A: 1.506E-3 Air-B: 2.250E-4 Air-C: 1.247E-7 Cool-A: 1.222E-3 Cool-B: 2.776E-4 Cool-C: 4.196E-8 and CLT under ....../thermfactor.inc Granted, I'm actually yet to take a drive in my car w/ those settings, but at idle in my garage those settings jived perfectly with megatune. |
Originally Posted by Ben
(Post 166534)
Ben--the air temp settings you have already posted look correct to me. You can check them under the file megasquirt/without afm/mtcfg/matfactor.inc
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I see what you're doing, I think... The default files are coded around the GM sensor. That's why they have the same values. :)
You need to look in the MSPNP W/O AFM folder, the "your car" folder that shows your customized settings, not in the main MegaTune folder which only shows default settings. |
Originally Posted by Ben
(Post 166542)
I see what you're doing, I think... The default files are coded around the GM sensor. That's why they have the same values. :)
You need to look in the MSPNP W/O AFM folder, the "your car" folder that shows your customized settings, not in the main MegaTune folder which only shows default settings. W/O AFM: Code:
C:\Program Files\MegaSquirt\MSPNP MM9093 without AFM\mtCfg\matfactor.inc Code:
C:\Program Files\MegaSquirt\MSPNP MM9093 with AFM\mtCfg\matfactor.inc |
OK, so mazda uses the same sensor for coolant and air temp. It's just a thermistor right :)
<edit> and I believe GM uses the same thermistor for both air and coolant temps too, and that's why the MT default settings (which defaults to GM sensors) show the same Steinhart-Hart coefficients for both AIT and CLT |
That's all I can figure.
Anyway, it looks like the Air-A,B,C should be A= 6.034498E-04 B=4.181235E-04 C= -1.094738E-06 |
Nope, just spent 10 minutes in the car. The settings for MAT and CLT you originally listed and I copied in post #69 are correct to MegaTune within 1 degree F.
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WTF. :vash:
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hahahah, so has all of this been for moot?
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I just wish I remembered where I got those original values.
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The correct ones? See post 69.
CJ, don't be rediculous. We did all the hard work, and anyone w/ a mspnp w/ a 2.5bar sensor can simply copy the settings listed. And I *think* I've got the 4 bar map settings, but it's too hard to drive and check in boost, especially because it's wet out. I'll post the new settings as soon as I can verify. |
Originally Posted by Ben
(Post 166570)
The correct ones? See post 69.
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You need to use the .inc file
Code:
; Generated using EasyTherm4.exe, |
Sorry, typo; that's what I've been using/showing.
Very odd. Your file has different values. I can only assume that my file at home has the same as yours then. It looks like DIY's most recent software package includes a different/new matfactor.inc. |
So has anyone tried to use the USB mod to MS and palmlog?
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I run the USB MS deal. Either the driver packet is kind of glitchy or i have reset issues cause it likes to drop com on me sometimes.
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Originally Posted by magnamx-5
(Post 166614)
I run the USB MS deal. Either the driver packet is kind of glitchy or i have reset issues cause it likes to drop com on me sometimes.
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Ben, hows the process getting files off the palm to the comp using the CF card?
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:dunno: I don't have a card
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Originally Posted by Ben
(Post 166570)
The correct ones? See post 69.
CJ, don't be rediculous. We did all the hard work, and anyone w/ a mspnp w/ a 2.5bar sensor can simply copy the settings listed. And I *think* I've got the 4 bar map settings, but it's too hard to drive and check in boost, especially because it's wet out. I'll post the new settings as soon as I can verify. Pretty badass you guys got it working. |
I originally posted the values I have been using on my palm since the thread began. Ben wanted to get MAP values for using his 4-bar sensor, where mine is the standard 2.5-bar. While going through that ordeal, he proposed updated settings for the 2.5-bar MAP sensor. Somebody asked about my CLT values, and while double-checking them, I downloaded the MSPNP software bundle to check out the .inc files, where the AIR values were much different. The original matfactor.inc file matches what I originally posted, however.
I'm still not sure why, if you go to the megasquirtpnp.com site right now and download the software bundle, the matfactor.inc file is different than what came bundled with my MSPNP (for w/o AFM). That's the summary. |
That was an update to improve the accuracy of the IAT reading.
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So I'm not crazy! Thanks for relieving me of my self-doubting ;)
I think I'm going to go ahead and replace my matfactor.inc file and switch values on the PalmLog. |
Thanks Matt. Then I assume that you suggest that we should update the older matfactor settings to the new settings? Is there anything to be made aware of?
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Correct MAP sensor values for PalmLog:
2.5 bar, standard MS sensor, included in 90-93 PNP Scale: .964 Offset: 9.108 4.0 bar, upgrade sensor for MS and 90-93 PNP, included in 94-95 PNP Scale: 1.62 Offset: 4 The 2.5 bar settings above will be the default settings in the next version of PalmLog. |
Originally Posted by Ben
(Post 167292)
The 2.5 bar settings above will be the default settings in the next version of PalmLog.
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Yeah, I guess, Maybe, I dunno :dunno:
Originally Posted by the dude who wrote the software
kPa = .964 x adc + 9.108, which is off a bit from the 0.984, 9.0 shown as defaults. I'll update this with the next release.
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Sweet, I've got an old Palm I could try this on. This would be awesome for tuning cold start settings I reckon.
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May as well get this dope wars game too. It is highly addictive. http://www.download.com/DopeWars-Pal...-10500611.html
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