1227165 ecu with custom code much better than stock ecu. (Page 23/26)
fierosound JUN 02, 11:42 PM
OK - I got the car running and have taken it out for a couple of 15 minute drives.

It took a while to get an appropriate BIN as a start point with matching data files.
Once we got that figured out, the ECM takes a while to sort out the IAC, you have to play with the fuel etc. just to idle.
It also became apparent my older model Zeitronix ZT-2 O2 controller was NOT a linear signal.
So I changed that out to an Innovate LC-1 controller and am running with that now.

So now it runs. Idle is not bad and it doesn't feel awful when driving, but looking at the dashboard information, there's LOTS of tuning ahead.
Light throttle leans it out, so there's not enough "pump shot" and stomping WOT drops it to an AFR of 10 (maybe less) - too rich!

At least I can now say the hardware is working as it supposed to.
Now it's the software (tuning) that needs work.

BINs and definition files for TunerPro - all ECMs
http://www.gearhead-efi.com...Diagrams-Tuner-Info!

[This message has been edited by fierosound (edited 06-09-2014).]

fierosound JUL 04, 08:29 AM
Paging Chet

Check your emails and/or cell phone messages!

I've been left in the goofy situation of having 2 cars, but only 1 NVRAM for the 1227165 ECMs.

I need to hear back from you!
Tony
Daviero JUL 08, 12:26 PM
Been having success with my 7165 for a while now. Running a Northstar with a bin file derived from an OBDII data file I found in the archives (posted by AJ)
Engine runs well and easy to tune. Minor issues of course but a bit of research and time sorts these out.
Don't have the knock sensor figured yet, so I have the knock retard feature of ESC disabled (un-set) for now.
Previously ran the 7730 on the N* but I prefer this setup so far.

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Daviero - 88 N* GT

fierosound AUG 15, 11:14 AM
I bought another 7165 ECM with NVRAM from LeeR
http://www.fiero.nl/forum/Forum4/HTML/069592.html

I am now running this same ECM/NVRAM setup on my Indy.
We're still working on tuning the BIN files (there's nothing remotely close that's "factory").

See here: http://www.fiero.nl/forum/F...L/000077-5.html#p197


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My World of Wheels Winners (Click on links below)

3.4L Supercharged 87 GT and Super Duty 4 Indy #163

[This message has been edited by fierosound (edited 01-26-2021).]

fierosound SEP 05, 10:48 AM

quote
Originally posted by fierosound:

If your engine is mostly stock and runs fine - don't bother changing the ECM.




quote
Originally posted by KillerFrogg:

Fierosound, care to elaborate, or at least share your experiences?



The trick is to start with a BIN file that's close to what your engine is. Sounds reasonable, right?
With the GT we were starting with V6 turbo or supercharged BINs - that worked terribly.

In desperation, I got a Camaro TPI V8 BIN file (set up for MAP) and made a couple of simple changes.
Set it to 6-cylinders, a BAR 2 MAP sensor and set the fueling to match my injectors. Worked great!
The car is completely drivable, though I know it's not 100%. The tuning will need need some refining.

However, I'm leaving that until the Indy is sorted out.
It was a priority since it was completely undrivable with the FAST EZ-EFI system

[This message has been edited by fierosound (edited 09-05-2014).]

fierosound SEP 05, 10:56 AM

quote
Originally posted by KillerFrogg:

So, first I need the ECM.
Add an IAT
Probably wbo2 because why not,

Now with the knock sensor, regardless of internal filter or not, what value does it add 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.




CHET can chime in on whether this setup is only good with the $12P BIN file or not.
Not completely sure if you can run a factory 1227165 S10 2.5L BIN (I don't see why not).

For the $12P BIN file, I already had the WBO2 sensor and just bought a Controller for it.
Best price and excellent products from here: http://www.14point7.com/pages/products

Here's the conversion wiring diagram I created when I did the conversion for my 84.
The 84 ECM has numbered Black and White connectors, the 7165 has them numbered A,B,C,D

You'll need Delphi 18ga Micro-pack connectors http://www.fiero.nl/forum/Forum2/HTML/114839.html

84 ECM to 1227165 ECM wiring conversion chart

[This message has been edited by fierosound (edited 09-07-2014).]

fierosound OCT 05, 09:50 AM
Chet's disappeared??

So I have 2 cars running with this system. Both are running OK, neither is running 100%

I'm still working with Dave at Old School EFI ( www.gearhead-efi.com ) to tune the Indy. Apparently, the Aussie $12P code is very different from the regular GM code, so it's been a learning experience for Dave to get this far (and he's an experienced GM tuner/TunerPro user - I'd have NEVER got it working). I figure I have about a month of "driving weather" left before the Indy is off the road for the winter. Then we'll have to continue working to get the tune "just right" in the spring next year.

The Indy was a priority since it started out completely undrivable, but once it's done, we also have to have a closer look at the $12P tune in the GT with supercharged 3.4

It's too bad there isn't a more widely used regular GM Stateside BIN file w/ WBO2 capability that can be used in this ECM with the NVRAM (ie: $58)

I think Dynamic EBL may have better support http://www.dynamicefi.com/

[This message has been edited by fierosound (edited 10-05-2014).]

chetw77cruiser OCT 05, 11:03 PM
I am still around, just busy with work and other projects.
fierosound MAY 20, 02:00 PM

quote
Originally posted by chetw77cruiser:

I am still around, just busy with work and other projects.



Chet - please check your email at chetw77cruiser@centurylink.net

Still having problems with this setup - have some questions...
Nobody seems to know how to tune $12P because of its quirks...

[This message has been edited by fierosound (edited 05-20-2015).]

edfiero MAY 21, 11:59 AM
Fierosound- hopefully in the next week, I will be getting my feet wet trying to tune my SD4.
I went with Dynamic EFI with what amounts to the 1227747 ECU. I set the injectors, and switched it to a 4 cylinder. No idea what else will need to be changed, but for now just crossing my fingers that the engine will run without a MECHANIAL issue. (Wiring is not quite right with my Fuel Pump. I need to solve that, then I'll be ready to try to start it)