1227165 ecu with custom code much better than stock ecu. (Page 19/26)
LeeR DEC 30, 02:06 AM
Another satisfied customer!!

I recieved my set-up from Chet a few months ago and finally decided to install it. My car hasn't run for years and this was my final step to get her started. It worked like a charm, and Chet was really easy to work with!

Just wanted to to let you guys know!
fierosound APR 08, 09:58 AM
I got my ECM and NVram from Chet back in the fall, but then winter hit - been hibernating.

Chet - I'm looking at installing this on weekend of April 19-20 (check your email).

With this setup, a knock sensor and wide-band O2 I should be able to:

Control a 1, 2, or 3 bar system.
Control a distributor or DIS system.
Use a knock sensor with controller or an internal knock filter like the 7730/7749.
Full use of wide-band sensor inputs, not just display lambda/A/F ratio.
Full self learn using wide-band as well as narrow-band O2 sensor, even both if so desired.
Can control EGR but is not native to the code, will need to use one of the four user configurable outputs.
Tuning is done real-time using nothing but the ALDL port and Tunerpro RT.
Same goes for flashing a new tune to the controller, no need to remove the ECU for an update to the code.

------------------
Calgary time/temp

3.4L Supercharged 87 GT Click me
Super Duty 4 Indy #163 Click me

fierosound APR 20, 05:32 PM
Does anyone know where Chet has gotten to these days??
I've haven't been successful with PM or emails the last 2 weeks.....
I had his phone number and talked with him last fall, but seem to have misplaced it.

I've just gotten around to installing the 7165 ECM w/NVRAM and custom BIN that he put together for me.
I was very careful with the wiring as he outlined in the spread sheet he sent me.

I got it all connected and hit the key to crank it up. Lots of gas but no spark at all!

[This message has been edited by fierosound (edited 04-21-2014).]

fierosound APR 20, 05:37 PM
Vehicle List for the 1227165 ECM
http://parts-catalog.acdelc...g=2428&parttype=2514

Here's how the ECMs compare when stacked up.
You can see how all 3 use the exact same connectors.

1227165 - what I installed (top one)
1227170 - 87 ECM from my GT (BIN reprogrammed for S/C)
1226869 - 85 ECM w/custom programmed BIN I had been running (S/C with knock sensor)



Here's the 1227165 next to the 1227730.
You can see the rewiring that would be involved in the 7730 ECM swap.
I had planned doing a 7730 swap but was stymied by all that rewiring.



Here's the guts of the 1227165 with NVRAM installed - this makes it real-time programmable.
The 7165 has the same processing power of the 7730 with a lot less rewiring to install it.

Wires relocated - D13>A11, A11>C12, D12>D2, B4>D4
joined together - C11/C12, D14/D15, C15/D16, D10/A12 (ground)
new added - B7 (knock), D8 (WBO2)
Only wire left disconnected is for the EGR on D8 (reused location for WB02).
EGR is non-functional now in the $12P bin.




Just a jumper added on the back of the MB

[This message has been edited by fierosound (edited 09-22-2025).]

chetw77cruiser APR 20, 06:11 PM
Still here, just have projects of my own keeping me busy. I have not received and new PM's or email messages so not sure what is going on there. I do have your number and will give a call today sometime.

Chet.
fierosound APR 20, 06:22 PM

quote
Originally posted by chetw77cruiser:

Still here, just have projects of my own keeping me busy. I have not received and new PM's or email messages so not sure what is going on there. I do have your number and will give a call today sometime.

Chet.



Good to know you didn't fall off the face of the earth

Looking over the code right now. Wondering if ignition is set for DIS instead of distributor or something similar wrong.

Chat later.
fierosound APR 21, 03:55 PM
Well, we can't get the 7165 ECM to flash any "Check Engine" error codes or communicate through the ALDL with any programs.
The ECM will run the fuel pump at "key on" so the ECM IS getting power and I guess it's not completely dead.

I think either the NVRAM board has a problem, or the jumpers on it aren't set right. Looking for documentation right now...
This thing replaces the stock memcal that the ECM would have originally come with. (this is picture of earlier version)



It looks like you can install the original memcal as well. Not really sure what the purpose of that would be.
I've tried this board with and without the memcal. The ECM still doesn't respond to anything.

[This message has been edited by fierosound (edited 04-21-2014).]

chetw77cruiser APR 21, 07:07 PM
Based on the information you have been providing, there is a good chance the NVRAM is at fault. I have been having issues with the new batch of nvram boards loosing their data. I have one in my car and ran into the same problem upon initial install. The NVRAM chip does ave a battery internal that has a finite lifespan, but this is to short of a time to be a dead battery I do have a different NVram board that works but without the setting jumpers. It is set up strictly for use in a V6 application and does not have the header for the memcal. It does have a battery that can be replaced.

The memcal installs on the side pins of the NVram board to provide the redundant fueling calibration. Basically this is the limp home mode.

We will get this working.
Cajun APR 23, 08:06 PM
I had been considering doing the 7730 swap, but from I've read here now I 'm not so sure! I have acquired two 7730's for the swaap. Now I'm considering a 165 swap. Particularly so with fewer wire changes required.

The big question, who among you have actually done this conversion and what results have you had?


Who do I Ned to contact or what is needed to do this conversion?
Cajun APR 23, 08:08 PM
Chet,

My bad, guess I should be communicating with you to get this swap in progress!