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Old 09-17-2002, 05:01 PM   #1
Midwayman
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Default Link Map Sharing site.

http://www.linklablibrary.net/

Mostly Miata, but a place to trade maps.
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Old 09-17-2002, 05:03 PM   #2
Midwayman
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Talking wide band and LINK?

Datalogging Auxiliary Inputs with the Link
Posted on Jun 12, 2002 - 06:30 PM by kgreb

A few of us have been datalogging wideband O2 sensors with the Link for a while. While all the info needed to do this is in the archives, I thought I'd put together a summary of instructions and cross-post this to the forum...


This is not intended to be a tutorial on widebands, tuning, or MLL. It's just the set of instructions we used to get auxiliary input logging to work on a Link. Thanks to Jess and Ray for all their help in getting this set up.

Wiring up the sensors
1.6L (proven on a 92 1.6L Mk2 with Lambdaboy and DIY-EFI widebands)

on the Mk2 ECU there is a jumper on the back of the board that shorts pins 2R and 2P; remove it

move the pin in the 2P position to the 2R position

run the analog output of your wideband O2 to the 2P position


1.8L (proven on a 95 1.8L with Lambdaboy and DIY-EFI widebands)

the auxiliary input is the same as the egr feedback signal

option #1 -> run the analog output of your wideband O2 to the wire in position 2J

option #2 -> under the hood, tap into the EGR signal and ground (2 outside wires on 3 pin EGR electrical connector)

On my car I hacked up an old EGR valve's electrical connector and ran wires from the outside 2 terminals. This lets me simply unplug the normal EGR connector and plug in my hacked connector into any Link'd 1.8L.



Setting up MLL
MLL needs to know how the 0-5v Link aux input should be scaled. This is done by using an auxiliary conversion table.
Select the correct data conversion table by choosing "Customize" -> "Options" Then click on the "File Locations" tab Put the correct path and file name in the box labeled "Path and File Name of Aux Input Conversion File"


The current rev of MLL comes with conversion files for the FJO wideband and the DIY-EFI wideband. Default location of the files is:
C:\Program Files\MiataLinkLab\Conversion Tables\
Conversion files are in a simple text format that you can modify for any auxiliary analog input:

Miata Link Lab Aux Input Conversion Table
225=137
230=138
235=140
240=142



where the first column is the analog input voltage (0-5v) *100 and the second column is the converted MLL value in this case 2.25v --> 13.7:1 A/F ratio

I've written a conversion chart for the Lambdaboy if anyone needs it. Email me if you need the file.

1.8L Link users MUST uncheck the "Exhaust Recirc" box on the first page of their zone map. You will not be able to log without doing this.



Understanding MLL Datalogs
The ECU will log the auxiliary input in the I/A column of the datalog when the idle switch is open. When idle switch is closed the datalog shows the normal value for the column - idle duty cycle.

There are 2 different measurements taken of the auxiliary input
1.8 V=14.4 CT=050 AT=022 -- -- -- -- -- -- KC=000 2.67v 6900 6969 0AA1 0062
000915 2495 33 91 0 245 4 2.67 3 39.8
000916 2493 33 91 0 244 4 2.68 3 39.8
000917 2496 34 91 0 250 4 2.68 3 39.8
000918 2506 34 91 0 245 4 2.69 3 39.8



"Aux NS" is the auxiliary input native (unconverted) voltage sampled slowly. This would be the 2.67v value sampled every status line.

"Aux NF" is the auxiliary input native voltage sampled fast. This would be the 2.67, 2.68, 2.68, 2.69 values in the log.

"Aux CS" is the aux input converted voltage sampled slow.

"Aux CF" is the aux input converted voltage sampled fast. This is the value you will be graphing most often to get your wideband A/F ratio.
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Old 09-21-2002, 02:03 AM   #3
Poppa smurf
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Great idea. tuning is one of the issues I am very worried about when i get mine.
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Old 09-21-2002, 04:38 PM   #4
PunKidd
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Sweet. I tired to sign up though and there was an error. e-mailed the webmaster. Hopfully he'll get it fixed.
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Old 09-21-2002, 05:20 PM   #5
Impreza Rider
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Yeah, I tried to sign up, and got the same error a couple of days ago. I sent an e-mail also.
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Old 09-23-2002, 01:54 PM   #6
soobydo
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Can you use MiataLinkLab with the Subie version of the Link?

I have a Turboed Miata as my OTS, and thought that the MiataLink and its related software were in a world all their own, and had no compatibility with the Subie Link ECUs

Posts in this thread seem to suggest otherwise.

Am I reading too much into this?

Chad
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Old 09-23-2002, 04:40 PM   #7
Imprezha
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Why don't we have our own link site for pcl files?
I was talking to a guy in nopi and he was telling me about the the pain of tuning while driving through different states causing him to almost stall from lack of fuel from different altitude.

It would be cool to have different maps for different altitude
incase anyone traveled to different states.

Imprezha
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Old 09-23-2002, 06:00 PM   #8
Midwayman
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the LINK plus is supposed to compensate for altitude. Thats the wonderful thing about a MAP sensor. Anyhow, I can host PCL files, trouble is I dont have any database stuff to make it easy to add things.
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Old 09-24-2002, 03:14 AM   #9
PunKidd
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The car specific Links do use the same software w/ the same inputs. The boards are not compatible in that they are physically different, but the software is all the same.
FYI: Most of us in here (AMFI) are running generic Link Pluses, not the Subaru specific Link like the WRX guys.

-Jared.
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Old 09-24-2002, 02:28 PM   #10
wcbjr
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I have access to a web server with database. I will be more than happy to whip up a site for us all. I can polish my SQLServer and ASP skills. Gimme a couple days to get a domain and a basic page for uploads and downloads.

Any ideas for a domain name?

Charlie
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Old 09-24-2002, 02:47 PM   #11
Impreza Rider
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How about "thescbooylink.com"?
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Old 09-24-2002, 03:32 PM   #12
Midwayman
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how about something more generic... like "ScoobyEMS.com"
I imagine that the Haltek and Tec-II guys wouldnt mind being able to post as well.
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Old 09-24-2002, 03:38 PM   #13
Midwayman
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About the fields....
Name:<link to user profile with list of mods>
ecu:
Make/Model:
Year:
Engine:
Turbo:<NA/type>
Date:
<link to actual map file>
Comments: Space for altitude, cool/warm climate, revision #, current problems, etc.
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Old 09-24-2002, 03:43 PM   #14
wcbjr
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Looks good to me so far. This will be a piece of cake to get up and running within a week. Keep on adding to the list of features if any of you can think of more. The only thing I don't want to include is forums. The site cannot handle that much traffic.
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Old 09-24-2002, 03:51 PM   #15
wcbjr
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Heh, the domain name for www.scoobyems.org is now mine. (non-profit) Thanks for the idea. Site to come soon.
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Old 09-25-2002, 10:44 AM   #16
RS_NW
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That is awesome, I'll be sure to add mine as soon as I get my new laptop and PCL files sorted!
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Old 09-27-2002, 04:30 AM   #17
Imprezha
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Any update on the link map site.
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Old 09-27-2002, 09:23 AM   #18
wcbjr
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I have the domain, but I have to work all day Sat and Sunday, plus the normal Mon - Fri, so it may be till the end of this coming week.
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Old 09-27-2002, 10:44 AM   #19
cpu77
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Default uh what about Iclub?

Whats wrong with Iclub? I bet it could easily be done here????
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Old 09-27-2002, 01:53 PM   #20
Midwayman
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Default Re: uh what about Iclub?

Quote:
Originally posted by cpu77
Whats wrong with Iclub? I bet it could easily be done here????
Currently there is no file sharing ability, plus having it all in a database will help find what you need. Anyhow if it all works out well, Im sure there will be a permanent link from here. Kinda like Scoobymods now.
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Old 09-27-2002, 02:11 PM   #21
8Complex

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I will work on that with Nick. We used to be able to upload ZIP files, but I'll see if we can do map files as well. Will try to get .PCL and .6KM added. Will look into the other ECU's map formats...
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