help with selection
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
help with selection
I have reprogrammed my ECM with simple changes like fan on/off temp. So, now I'm ready to do some scanning and get at some real tuning. I am using Tunercat and the Pocket programmer and am happy with these products. But I need some guidance on the scanners
Please correct the following if I'm wrong:
1. I shouldnt even bother with WinALDL due to its not a 8192 baud system and can't do enough on my 87s computer, leave it for 85 and older.
2. FreeScan works great in 8192 baud mode, but I need to buy a cable.
3. FreeScan isnt as good as Datamaster, but they use the same cable.
As for FreeScan, who has a copy of an actual working cable schematic for the 87-89 style ECM? One that they have real first hand knowlege that it works fine?
Thanks!
Please correct the following if I'm wrong:
1. I shouldnt even bother with WinALDL due to its not a 8192 baud system and can't do enough on my 87s computer, leave it for 85 and older.
2. FreeScan works great in 8192 baud mode, but I need to buy a cable.
3. FreeScan isnt as good as Datamaster, but they use the same cable.
As for FreeScan, who has a copy of an actual working cable schematic for the 87-89 style ECM? One that they have real first hand knowlege that it works fine?
Thanks!
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
Re: help with selection (Topless87)
Has someone here used the 2-transistor style cable with ScanFree on the 86-89 cars? Does this model use pin E or M for 8192 data with the 10K resistor between A-B?
Thanks
Thanks
Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: help with selection (Topless87)
Don't sell Winaldl short. Even though the baud rate is slower Winaldl is more than capable of tuning your 87. The blm/ int tables in winaldl were designed and look similar to int/blm tables in Tunercat. The similarity makes making changes easy.
Download Winaldl and check it out. Heck, its free and the DIY cable will cost about 10 bucks.
http://winaldl.webhop.net/
Can't help you with #2 and #3.
The INT table
Dan
Download Winaldl and check it out. Heck, its free and the DIY cable will cost about 10 bucks.
http://winaldl.webhop.net/
Can't help you with #2 and #3.
The INT table
Dan
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
Re: help with selection (Dan Plett)
QUOTE:Don't sell Winaldl short. Even though the baud rate is slower Winaldl is more than capable of tuning your 87.
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I just read that some things aren't possible 160 baud interface. So, do you just not put a resistor between A-B at all to hook up WinAldl? And, the WinALDL site shows using pin E for the data cable, should I still use pin M on the 87?
I do like the WinALDL tables! Does it save the output from the ECM to disk?
I have some time over the long weekend and wanted to build one of these cables. I have tons electronic parts, so I figured I'd just try it. But, it would be nice to know which particular ones have been used in a vette like mine with success.
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I just read that some things aren't possible 160 baud interface. So, do you just not put a resistor between A-B at all to hook up WinAldl? And, the WinALDL site shows using pin E for the data cable, should I still use pin M on the 87?
I do like the WinALDL tables! Does it save the output from the ECM to disk?
I have some time over the long weekend and wanted to build one of these cables. I have tons electronic parts, so I figured I'd just try it. But, it would be nice to know which particular ones have been used in a vette like mine with success.
Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: help with selection (Topless87)
Yes, the tables can be saved to hard drive. At the bottom of the above table you will see a "Save Table" button. A 10K resistor will be needed to put the ecm in aldl mode.
The ALDL "M" terminal is empty/doesn't have wire connector on our '89 (and '84). The serial data is received through "E".
I'm not familiar with the other scan programs you listed. It's possible they do provide more information than Winaldl. The faster baud rate is also a plus.
The only problem I had building the cable was with the transistor. The Radio Shack diagram on the back of the package didn't match the pin-out of the transistor. The emitter and collector (1&3) are switched. 2N2222 is on the transistor package the transistors are 2N3904 . D'OH!
I don't know about the other programs Winaldl doesn't start populating the individual int/blm cells until the ecm is in closed loop.
Dan
The ALDL "M" terminal is empty/doesn't have wire connector on our '89 (and '84). The serial data is received through "E".
I'm not familiar with the other scan programs you listed. It's possible they do provide more information than Winaldl. The faster baud rate is also a plus.
The only problem I had building the cable was with the transistor. The Radio Shack diagram on the back of the package didn't match the pin-out of the transistor. The emitter and collector (1&3) are switched. 2N2222 is on the transistor package the transistors are 2N3904 . D'OH!
I don't know about the other programs Winaldl doesn't start populating the individual int/blm cells until the ecm is in closed loop.
Dan
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
Re: help with selection (Dan Plett)
Great info, thanks. I'm building that interface to give WinALDL a try.
I've seen several ALDL diagrams that say pin E is for 160 baud and pin M is for 8192. But, this sounds like its not true on the 87 vette. So, does the computer just automatically adjust to either 160 or 8192 baud mode depending on what it is hooked up to?(with a 10K resistor crossing A-B)
So, this setup on Carsten Myers f-body site will not work for me? See the reference to pin M?
Here's the "2 transistor" type I'm trying to do for FreeScan. Pin E???:
I've seen several ALDL diagrams that say pin E is for 160 baud and pin M is for 8192. But, this sounds like its not true on the 87 vette. So, does the computer just automatically adjust to either 160 or 8192 baud mode depending on what it is hooked up to?(with a 10K resistor crossing A-B)
So, this setup on Carsten Myers f-body site will not work for me? See the reference to pin M?
Here's the "2 transistor" type I'm trying to do for FreeScan. Pin E???:
Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: help with selection (Topless87)
Look at 'm' on your aldl connector. The '84 and '89 "M" is blank/doesn't have a wire connected there. My guess is that the '87 doesn't either. I don't know what ecms use "M" for the serial data.
When winaldl opens there is a configuration button at the top that lets you select the correct ecm. The program sets the proper configuration.
This and the other screen shots are from the Winaldl web page.
When winaldl opens there is a configuration button at the top that lets you select the correct ecm. The program sets the proper configuration.
This and the other screen shots are from the Winaldl web page.
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
Re: help with selection (Dan Plett)
You are correct, sir.
It looks like A,B,C,E,F,G are connected. I didn't disconnect from dash, so I could be wrong, but it is 6 wires. Does anyone have a reference to what the C,F,G do?
It works! Used the interface from the WinALDL site to pins A,B,E and assembled circuit on a cheap breadboard. Here's how it looks:
Thanks everyone for all your help! Now on to freescan at 8192 baud :smash:
[Modified by Topless87, 2:31 PM 8/31/2003]
It looks like A,B,C,E,F,G are connected. I didn't disconnect from dash, so I could be wrong, but it is 6 wires. Does anyone have a reference to what the C,F,G do?
It works! Used the interface from the WinALDL site to pins A,B,E and assembled circuit on a cheap breadboard. Here's how it looks:
Thanks everyone for all your help! Now on to freescan at 8192 baud :smash:
[Modified by Topless87, 2:31 PM 8/31/2003]
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Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: help with selection (Topless87)
:thumbs: :cheers:
I love it when a plan comes together!!!
Haynes shows
A=grd
B=test terminal
C=AIR-Air pump Switch
D=Check engine light
E=Serial Data
F=TCC-Torque Converter Clutch
G=Fuel pump test
Dan
[Modified by Dan Plett, 2:59 PM 8/31/2003]
I love it when a plan comes together!!!
Haynes shows
A=grd
B=test terminal
C=AIR-Air pump Switch
D=Check engine light
E=Serial Data
F=TCC-Torque Converter Clutch
G=Fuel pump test
Dan
[Modified by Dan Plett, 2:59 PM 8/31/2003]
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
Re: help with selection (Dan Plett)
Woo hoo! Logging data like crazy. I've just removed the cat and replaced it with an eliminator pipe. That should free up my exhale a bit! Now to the K&N and removing MAF screens.
Just got to figure out these data logs... where is the Knock sensor count in the log? Can't see anything that strikes me... and I can't watch the table while road testing.
Any help is appreciated
Just got to figure out these data logs... where is the Knock sensor count in the log? Can't see anything that strikes me... and I can't watch the table while road testing.
Any help is appreciated
Drifting
Joined: Dec 2000
Posts: 1,851
Likes: 5
From: Liberal Kansas
Re: help with selection (Topless87)
There is a spark counts tab at the top right with a save table button at the bottom of that page. I am use to the older versions. I don't know if you have to 'save table' on each tab or if that saves all of them. There is a data log button at the top that you can check what info you want to log. Again I'm not up to speed on this newer version.
Thread Starter
Racer
Joined: May 2001
Posts: 407
Likes: 0
From: San Antonio TX
Re: help with selection (Dan Plett)
Well, I just put together the "2 Transistor" two-way interface. The funny thing is it doesn't work with ScanFree, but it does with Datamaster and Moates software.
Could this be because ScanFree seems to be set for a "1989 Corvette" in its menu. So I'm thinking the ARAP code outputs a little different header than the prom of a stock 87. It keeps getting stuck on an unknown header error. Which doesn't seem to bother the other 2 programs.
Anyway, about $5.00 in parts and I now have a 160 and a 8192 baud interface. Pretty cool :cheers:
Could this be because ScanFree seems to be set for a "1989 Corvette" in its menu. So I'm thinking the ARAP code outputs a little different header than the prom of a stock 87. It keeps getting stuck on an unknown header error. Which doesn't seem to bother the other 2 programs.
Anyway, about $5.00 in parts and I now have a 160 and a 8192 baud interface. Pretty cool :cheers:
