Welcome to the North American Subaru Impreza Owners Club Friday March 29, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Engine Management & Tuning

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 09-02-2021, 08:27 PM   #1
JustK3n
Scooby Newbie
 
Member#: 417929
Join Date: Apr 2015
Chapter/Region: SCIC
Location: So. California
Vehicle:
2006 STI

Default Help: ECU swap

Hi everyone,

In order to pass new CA Smog test(s), I had to buy / install a new ECU at a Subaru dealership. I know… I know… I got ripped, don’t have to tell me twice.

This afternoon I tried putting back my original Cobb modified ECU, and now car will not start. I unmarried the Cobb AP before the dealer changed out the ECUs.

My car has an immobilizer, (I have the code, given by dealership), but this ECU was originally on my car. Did the dealership maybe remove the immobilizer code from ECU #1, so it cannot be used again?

Why doesn’t it work? I figured it would be “plug’n’play”. This is my first ECU swap.

If I had bought the ECU from someone else, it would make more sense if it did not work, because of different VIN and so on.

Any help would be greatly appreciated!!!

Ken
* Registered users of the site do not see these ads.
JustK3n is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 09-02-2021, 09:21 PM   #2
K3rm1tth3fr0g
Scooby Specialist
 
Member#: 508105
Join Date: Nov 2019
Chapter/Region: NWIC
Location: Greater Seattle Area
Vehicle:
Link G4X flex tuned
02' EJ205 20G 6MT wagon

Default

Quote:
Originally Posted by JustK3n View Post
Did the dealership maybe remove the immobilizer code from ECU #1, so it cannot be used again?

Bingo - this is what I would imagine is the case.


CA really sucks for car owners who like modifications :/
K3rm1tth3fr0g is offline   Reply With Quote
Old 09-03-2021, 04:57 AM   #3
benflynn
Scooby Specialist
 
Member#: 515308
Join Date: Jun 2020
Default

I removed the immo chip, copied it and soldered the copy on the board to get a clone ecu so I had a spare.
benflynn is offline   Reply With Quote
Old 09-03-2021, 04:59 AM   #4
benflynn
Scooby Specialist
 
Member#: 515308
Join Date: Jun 2020
Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Bingo - this is what I would imagine is the case.


CA really sucks for car owners who like modifications :/
If there just was this thing they could do, you know and all these stupid laws could be changed. Just one thing and take back over their government
benflynn is offline   Reply With Quote
Old 09-03-2021, 09:48 AM   #5
JustK3n
Scooby Newbie
 
Member#: 417929
Join Date: Apr 2015
Chapter/Region: SCIC
Location: So. California
Vehicle:
2006 STI

Default

Quote:
Originally Posted by benflynn View Post
I removed the immo chip, copied it and soldered the copy on the board to get a clone ecu so I had a spare.
So, are you saying the dealership, physically took out the Immo Chip from my original ECU?

I am new to this stuff. so please excuse me if I am asking a dumb question.

Thanks.
JustK3n is offline   Reply With Quote
Old 09-03-2021, 11:45 AM   #6
benflynn
Scooby Specialist
 
Member#: 515308
Join Date: Jun 2020
Default

No, I did for mine and copied it cause I wanted two with same immo info so I could swapp them back and forth, it’s easy and 150 for tools
benflynn is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 04:06 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.