ALDL error codes and software

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ALDL error codes and software

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ALDL error codes and software by fierosound

Started on	: 06-06-2014 05:15 AM
Replies	: 6 (791 views)
Last post by	: fierosound on 06-02-2015 12:15 AM

fierosound
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Report this Post06-06-2014 05:15 AM

Click Here to visit fierosound's HomePage

OK – You’re driving along and your “Check Engine Light” comes on
telling you to get your wallet out. NOW WHAT do you do???

To decipher what that flashing light means – get this indispensable scan tool.
A PAPERCLIP. Then see here: https://www.fiero.nl/cgi-bin/main.cgi?ECMCodes

The ALDL codes will point you in the direction of what may be wrong.
You can then follow up instructions in a Service Manual on diagnosis and repair.

For most people, this is adequate for general repair and maintenance.
To “clear the codes” pull the ECM fuse in the fuse box for a couple seconds to reset the ECM (usually Fuse #1).

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[This message has been edited by fierosound (edited 06-07-2014).]

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fierosound
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Report this Post06-06-2014 05:18 AM

IF you want to get more data from the car’s ECM - you can!

This ALDL port can also be accessed to provide real-time data of what your engine sensors “see”.
For this, all you need is an ALDL interface cable to a computer and some software.
All Fiero factory installed ECMs are the “160 baud” type.

General ALDL information http://pcmhacking.net/forum...topic.php?f=10&t=219

TWO FREE PROGRAMS available WinALDL and TunerPro

WinALDL FREE software download (for Fiero V6 engines only) http://winaldl.joby.se/
Also instructions on how to build an ALDL 160 baud interface cable.
In configuration, set to correct ECM type.
1985 V6 – 1226869 (1985 2.8 litre MPI)
1986-88 V6 - 1227170

For 1984-86 Fiero L4 engines & 1985-88 V6 engines – interface cable & software
From Fiero Store http://fierostore.com/Produ...ail.aspx?s=51415&p=1

Another source of ALDL cable (good Seller – I have another product of his)
http://www.ebay.com/itm/GM-...motive_Tools&vxp=mtr

[This message has been edited by fierosound (edited 06-06-2014).]

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fierosound
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Report this Post06-06-2014 05:20 AM

TunerPro is a much more advanced program intended for more than just scanning data.
But these tuning guides are still helpful in how to use the program:
Basic http://pcmhacking.net/forum...oad/file.php?id=5966
Advanced http://pcmhacking.net/forum...oad/file.php?id=5962

TunerPro FREE software download http://tunerpro.net/downloadApp.htm
You will need 3 files to make this work. Your BIN and “Bin definition” files.

Download appropriate XDF and ADS file for your computer here:
http://tunerpro.net/downloadBinDefs.htm
$14 - 1226156 – 1984 Fiero L4
$1C - 1226864 – 1985-86 Fiero L4
$70 - 1227748 – 1987-88 Fiero L4
$24A – 1226869 – 1985 Fiero V6
$24 – 1227170 – 1986-88 Fiero V6

Then get the BIN file – this is the program in your ECMs PROM chip.
PROM numbers listed here: http://www.exatorq.com/ludis_obd1/fieroprom.html
You can also look at the number on your PROM if you access the ECM under the center console.
BIN files http://gearhead-efi.com/gearhead-efi/bin/

Registration to the Gearhead website is FREE – you can then access these files.
http://www.gearhead-efi.com...Diagrams-Tuner-Info!

1226156 BIN files (1984 Fiero L4)
http://www.diy-efi.org/file...bin_lib/1226156/lr8/
http://www.gearhead-efi.com...efi/bin/1226156/lr8/

1226864 BIN files (1985 Fiero L4)
http://www.gearhead-efi.com...4-ECM-Information-1C

1227748 BIN files (1987-88 L4)
http://www.gearhead-efi.com...0%2048%20%205F%208C/
http://www.gearhead-efi.com...8-ECM-Information-70

1226869 BIN files (1985 Fiero V6)
http://www.gearhead-efi.com...-ECM-Information-24A

1227170 BIN files (1986-88 Fiero V6)
http://www.gearhead-efi.com...0-ECM-Information-24

[This message has been edited by fierosound (edited 06-02-2015).]

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fierosound
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Report this Post06-06-2014 05:21 AM

MORE READING:
Good stuff on general ALDL, PROM tuning, hardware, software etc.
The Camaro guys are way ahead of most of us in this area (nice collection of info)
http://www.thirdgen.org/tec...ning-guide-book.html

John Wilson's "How to Build a GM EFI System" and "Tuning Guide"
You may not want to build one, but his explanation of the sensors and what they do in the BIN is the best around.
Link to download PDFs (it takes a while)
http://www.goo gle.ca/url?sa...445247,d.cGU&cad=rja
http://w ww.google.ca/url?sa...vm=bv.68445247,d.cGU

[This message has been edited by fierosound (edited 06-06-2014).]

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PaulJK
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Report this Post06-06-2014 06:53 AM

Nice reference. Here's some info on using android apps and hardware.

https://www.fiero.nl/forum/Forum1/HTML/093176.html

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Kitskaboodle
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Report this Post06-06-2014 10:45 AM

Thanks for putting this thread up.

I just got an SES light this morning on the way to work and will be using the 1st link you posted.
By the way, there is actually one code that needs some revision. (Code 32 / EGR) Near the end of the paragraph it says basically that as long as it passes emissions and is running fine it is probably not worth chasing down the reason for the code 32 problem as it can be very difficult . Maybe so, but in CA that is not an option! Your car could be producing zero emissions but it doesn't matter. If that light is on, they will send you away without any further conversation.
Kit

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fierosound
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Report this Post06-02-2015 12:15 AM

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