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ALDL error codes and software by fierosound
Started on: 06-06-2014 05:15 AM
Replies: 8 (1470 views)
Last post by: 90turbo1 on 09-04-2015 10:28 AM
fierosound
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Report this Post06-06-2014 05:15 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post

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: http://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 Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post

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 Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post

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 Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageClick Here to Email fierosoundSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post

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 Click Here to See the Profile for PaulJKSend a Private Message to PaulJKEdit/Delete MessageReply w/QuoteDirect Link to This Post

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

http://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 Click Here to See the Profile for KitskaboodleClick Here to Email KitskaboodleSend a Private Message to KitskaboodleEdit/Delete MessageReply w/QuoteDirect Link to This Post

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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Cliff Pennock
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Report this Post06-02-2015 06:24 PM Click Here to See the Profile for Cliff PennockClick Here to visit Cliff Pennock's HomePageClick Here to Email Cliff PennockSend a Private Message to Cliff PennockEdit/Delete MessageReply w/QuoteDirect Link to This Post

If you are using WinALDL, you absolutely need ALDLView to view the data.

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RayOtton
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Report this Post06-12-2015 06:44 AM Click Here to See the Profile for RayOttonClick Here to Email RayOttonSend a Private Message to RayOttonEdit/Delete MessageReply w/QuoteDirect Link to This Post

 
quote
Originally posted by Kitskaboodle:

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


I hope I don't violate some forum rule about getting around emissions regulations but I want to mention that it's a 5 minute job to take the check engine bulb out of the instrument pod.

I have an '88 Formula with the usual exhaust flow improvement mods of ported manifolds, Y-pipe and low restriction cat.

I didn't have any check engine lights until after I added a bored out throttle body. Then I started throwing codes and ended up with about 10 different problems according to the reader.

I replace s a couple of sensors that COULD have been the problem according to info here and on other GM forums but the codes returned after reset.

Throughout this the car was running better than ever. Smooth idle, peppier mid-range, no tailpipe smoke and the gas mileage was the same as before all the mods.

So I gave up and took out the bulb. The past year of driving has been flawless and really enjoyable as the car continues to run perfectly.

YMMV.

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90turbo1
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Report this Post09-04-2015 10:28 AM Click Here to See the Profile for 90turbo1Click Here to Email 90turbo1Send a Private Message to 90turbo1Edit/Delete MessageReply w/QuoteDirect Link to This Post

 
quote
Originally posted by RayOtton:


I hope I don't violate some forum rule about getting around emissions regulations but I want to mention that it's a 5 minute job to take the check engine bulb out of the instrument pod.

I have an '88 Formula with the usual exhaust flow improvement mods of ported manifolds, Y-pipe and low restriction cat.

I didn't have any check engine lights until after I added a bored out throttle body. Then I started throwing codes and ended up with about 10 different problems according to the reader.

I replace s a couple of sensors that COULD have been the problem according to info here and on other GM forums but the codes returned after reset.

Throughout this the car was running better than ever. Smooth idle, peppier mid-range, no tailpipe smoke and the gas mileage was the same as before all the mods.

So I gave up and took out the bulb. The past year of driving has been flawless and really enjoyable as the car continues to run perfectly.

YMMV.



i know this is an old thread, but removing the bulb for the CEL will also result in a fail if you live in California or any state that uses california emission standards. they will do a bulb check at the begining if that fails they will fail you.


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