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***WARNING***

This procedure will break your car if not done right. I would not attempt your first one on your daily driver. You should buy a $100 one off of eBay or get one from a junkyard to test.

Install your “junkyard ECU” in your car. Make sure you remove the negative cable from your battery first. When completed attach the negative cable to the battery again.

Edit per CJPeterborough's feedback:

12 volt charger for the battery should be attached. The battery must be between 12.6 and 14 volts. The battery must be completely charged before programming.


You must use the AC adapter for Tech 2 and the one for the laptop.

1) Connect Tech 2 to your car.

2) Turn the key to on.

3) Turn Tech 2 on.

4) Select Service Programming System (SPS).

5) Select request info.

6) Select continue for it to pull the VIN, etc.

7) Select year and model for your car.

8) Select engine.

9) Select ECM.

10) Turn key to off…not to lock.

11) Select okay after you make sure you have everything off (headlights, radio, etc, and a full battery).

12) Wait

13) The VIN for the car you are sitting in should be shown.

14) Turn off the ignition.

15) Power off Tech 2.

16) Disconnect Tech 2 from the car.

17) Start TIS2000.

18) Connect to a laptop with TIS2000 (network cable to laptop).

19) Power on Tech 2 and leave at initial screen.

20) Click on Service Programming System (SPS) on laptop.

21) Select Tech 2 and reprogram (if you want to have multiple ECUs i.e. stock and tune).

22) Next screen select next.

23) Confirm that the VIN number is for the car you are sitting in then next.

24) Select the details for your car then next.

25) Reprogram screen...you should see the software part numbers, a note on what the new software version updates and the details for your car. Click on the reprog button.

26) This screen will show the progress for the update.

27) Next screen shows that you are done.

28) Unplug network cable.

29) Turn the key to on.

30) Connect your Tech 2 to your car. Select SPS then Program ECU. Follow the prompts. When done it should say programming successful.

31) Select diagnostics.

32) Select your car’s details.

33) Select all.

34) Select add/remove.

35) Select control modules.

36) Select ECM (engine control module).

37) Select add.

38) Get security access.

39) Select diagnostics.

40) Select your car’s details.

41) Select all.

42) Select add/remove.

43) Select control modules.

44) Select ECM (engine control module).

45) Select add.

46) Select the details for your car.

47) Select ok.

48) Select tire size.

49) Select your market.

50) Select no if you want to have multiple ECUs ie stock and tune.

51) Turn the key to the lock position.

52) Remove key.

53) DONE
 

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Discussion Starter #2
T8 ECM (ECU) Clone

***WARNING***

This procedure will break your car if not done right. I wouldn’t attempt your first one on your daily driver. You should buy a $100 one off of eBay or get one from a junkyard to test.

***Use battery charger***

For T8 only

1) Buy used ECM with the same part number. It might not have to be the same part number but mine was and it worked with no issues.

2) Buy ScanTool OBDLink SX USB.

3) Follow the steps below to install TrionicCANFlasher.

Overview

Download

User Manual Clone procedure is on the last page but you should read the whole thing.

You will need to sign up for the TrionicTuning.

Forum

Important tips

Important tips

Follow the steps above exactly as shown.

4) Add the new ECM with a Tech 2.

5) Save at least $350 (well-known tuner charges that to do a clone).

My ECM had been failing for a long time but since I’ve cloned mine the car is even faster now.

If I missed a step please let us know and I/we will update the thread.
 

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A pretty good video of someone programming and adding a 2006 9-3SS ECU into a 2007.

 

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To confirm, if you purchase an ECU from same model (year/gearbox/motor) all you need to do is add with Tech2. It'll ask you:

gearbox
acc or mcc

then it'll think for a bit

then ask you what market (Rest of World, USA, etc...)

then it'll think for a bit

then ask you if it's a replacement

select NO if you want to use multiple ECUs.

Took maybe 5 minutes.
 
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