1227165 ecu with custom code much better than stock ecu. (Page 21/26)
cerulean MAY 12, 01:24 PM

quote
Originally posted by fierosound:
Not sure who's ALDL cable I'm using. Got it years ago (2002?) from someone here. It uses a 1/8" jack/plug to connect with the ALDL port.
I'm positive the cable worked fine with WinALDL and both the 7170 and 6869 ECMs, but wanted to check its connections.
I can't find any info on it anywhere...



If you're running $12P code, the easiest thing to do is buy a usb to 5V serial cable like this one and solder rx, tx and gnd directly to the ecm:

5v FTDI USB Serial adapter

This is what I did on my 1227165.

Here's a pic of the connection points on the '808 (same points as on '7165, ignore the Max232 reference in pic):

Solder points

Bob

Jefrysuko MAY 12, 02:01 PM

quote
Originally posted by fierosound:

Not sure who's ALDL cable I'm using. Got it years ago (2002?) from someone here. It uses a 1/8" jack/plug to connect with the ALDL port.
I'm positive the cable worked fine with WinALDL and both the 7170 and 6869 ECMs, but wanted to check its connections.
I can't find any info on it anywhere...

Info used to be here: http://www.fiero.nl/forum/Forum4/HTML/030414.html





You got that cable from me. It is only for 160 baud ECM's. The schematic for it is the second one Here with the R4 omitted.
fierosound MAY 12, 02:04 PM

quote
Originally posted by Jefrysuko:

You got that cable from me. It is only for 160 baud ECM's. The schematic for it is the second one Here with the R4 omitted.



That explains why I can't connect. Thanks.



quote
Originally posted by cerulean:

If you're running $12P code, the easiest thing to do is buy a usb to 5V serial cable like this one and solder rx, tx and gnd directly to the ecm:

5v FTDI USB Serial adapter

This is what I did on my 1227165.

Here's a pic of the connection points on the '808 (same points as on '7165, ignore the Max232 reference in pic):

Solder points




Thanks Bob.

Why not use any USB cable with one end cut off to expose the wires?
EDIT: I see - it has a convertor chip in it.

The pcmhacking information is clear as mud to me.

[This message has been edited by fierosound (edited 05-12-2014).]

fierosound MAY 13, 08:31 PM
Ordered the correct ALDL interface from RedDevilRiver on eBay.

So I hafta wait 'till it gets here - then we'll be able to see what's going on.

... to be continued.

[This message has been edited by fierosound (edited 05-14-2014).]

KillerFrogg MAY 14, 02:00 AM
I am quite interested to see this running with a duke, especially a pre-88 one.. once I get my '84 back together, I would be more than happy to be test subject for this swap on for the early L4 setup and help get a baseline tune figured out.
fierosound MAY 14, 08:27 AM

quote
Originally posted by KillerFrogg:

I am quite interested to see this running with a duke, especially a pre-88 one.. once I get my '84 back together, I would be more than happy to be test subject for this swap on for the early L4 setup and help get a baseline tune figured out.



Been done. I see that there is a Duke tune BIN for the ECM available.
http://pcmhacking.net/forum...7&hilit=fiero#p31027

[This message has been edited by fierosound (edited 05-14-2014).]

KillerFrogg MAY 14, 03:45 PM
A bit vague, but the bis in the most important thing. Thanks for the link, looks like I have some reading and digging to do! =)
fierosound MAY 14, 03:53 PM

quote
Originally posted by KillerFrogg:

A bit vague, but the bis in the most important thing. Thanks for the link, looks like I have some reading and digging to do! =)



The 1227165 ECM was used in 1987-91 GM trucks (S10/S15 etc.) trucks with 2.5L TBI Duke engine.
If you can find ECM from that truck with the AUXH Memcal - you'll be all set.

Vehicle breakdown;
http://home.earthlink.net/~...165/Usage/usage.html

ECM 1227165
Application:
1986 2.0 L4 TBI “P” LQ5 w/ MT
1986-89 5.0 V8 TPI “F” LB9
1986-89 5.7 V8 TPI “8” L98
1987-91 truck 2.5 L4 TBI “E” LN8
1991 truck 2.5 L4 TBI “A” L38



MEMCAL IDs:
“P”: CRY, CRZ, …
“F”: AUM, ACXT, AKFM, AKFR, …
“8”: BUA, AANK, AANL, APYP, APYU, AUJM, …
“E”: ADHF, AMJW, ASWY, AXAA, …
A”: AUXH, …

Get stock BIN files here :
http://gearhead-efi.com/gea...032%2032B%206E%2094/

TunerPro has the support files here ($83 and $94) :
http://tunerpro.net/downloadBinDefs.htm

[This message has been edited by fierosound (edited 05-14-2014).]

KillerFrogg MAY 14, 04:25 PM
So, first I need the ECM.

If I do not plan on doing any tune on the fly, then get the AUXH memcal chip, that if the ECM comes out of the truck, should be there. And mods to this memcal need to be done with a standalone chip flasher, correct?

If I do want to tune on the fly, then make the needed mod to the ECM, and get the NVRAM chip, ALDL serial to computer cable (already have made similar things before)

Add an IAT

Probably wbo2 because why not,

Now with the knock sensor, regardless of internal filter or not, what value does it add toall to all of this? There is the knock retard and the knock counter, but much else?

And being an '84, I will need to totally rework my wiring harness form card edge connector to plug for this ECM. That will be fun.

Anything I am missing, or should be aware of?

[This message has been edited by KillerFrogg (edited 05-14-2014).]

fierosound MAY 14, 11:44 PM
I don't think the stock code will accept WB02 input - only the hacked code.

I really don't know all the "ins and outs" of this.
I just happened to be researching it the other day as well.
But I believe we're on the right track.

I think you'll be OK using an Automatic trans Memcal if you have a standard transmission, but not the other way around.

eBay
http://www.ebay.com/itm/87-...em1e8b52e65a&vxp=mtr

http://www.ebay.com/itm/198...em5afebec411&vxp=mtr

[This message has been edited by fierosound (edited 05-15-2014).]