Successful USDM Evo 8 ECU swap into Evo 6 TME
Jul 8, 2008, 09:16 AM
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Successful USDM Evo 8 ECU swap into Evo 6 TME
Special thanks to Cossie, BarryC, and Todd-W over at OpenECU.org for helping me through the swap. Here are the details.
First, compare the USDM Evo 8 pinout to the Evo 6 TME:
Based on the pinout comparison, the follow harness changes are necessary:
Swap pins 8 and 22
Connect 31 from the ECU to 34 on the vehicle harness
Connect 31 from the ECU to 20 on the vehicle harness
Connect 32 from the ECU to 21 on the vehicle harness
Disconnect pin 87
I used a patch harness to make the changes and not have to cut the actual vehicle harness. All connections were soldered and then protected with heat shrink tubing. Any flying leads remaining were folded over and shrink tubed as well. Here are pictures of the work:
Once the harness was finished, I needed the proper ROM for the ECU. BarryC provided a JDM Evo 8 GSR ROM file and xml definitions with the rear O2, EGR, and immobilizer disabled.
My TME fired up right away, and has thrown no codes. I took it immediately over to our emissions station, where it passed their ODBII check. (The emissions test started me down this path in the first place. The Evo 6 TME ECU would not talk to the emission station computer via the OBDII port.)
Very happy to have the swap complete, and can't wait to start logging and tuning.
Thanks again,
Tim
First, compare the USDM Evo 8 pinout to the Evo 6 TME:
Based on the pinout comparison, the follow harness changes are necessary:
Swap pins 8 and 22
Connect 31 from the ECU to 34 on the vehicle harness
Connect 31 from the ECU to 20 on the vehicle harness
Connect 32 from the ECU to 21 on the vehicle harness
Disconnect pin 87
I used a patch harness to make the changes and not have to cut the actual vehicle harness. All connections were soldered and then protected with heat shrink tubing. Any flying leads remaining were folded over and shrink tubed as well. Here are pictures of the work:
Once the harness was finished, I needed the proper ROM for the ECU. BarryC provided a JDM Evo 8 GSR ROM file and xml definitions with the rear O2, EGR, and immobilizer disabled.
My TME fired up right away, and has thrown no codes. I took it immediately over to our emissions station, where it passed their ODBII check. (The emissions test started me down this path in the first place. The Evo 6 TME ECU would not talk to the emission station computer via the OBDII port.)
Very happy to have the swap complete, and can't wait to start logging and tuning.
Thanks again,
Tim
Jul 8, 2008, 09:31 AM
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nice... I have an evo 8 ECU on an evo 7 engine in an evo 6. I did have a problem, that was the immobilizer. I used the tatrix and the OpenECU software to disable it.
You can able to swap evo 8 and 7 ecu to the CP9A IV, V, and VI but can't swap the old version to the current CT9A.
You can able to swap evo 8 and 7 ecu to the CP9A IV, V, and VI but can't swap the old version to the current CT9A.
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Jul 15, 2008, 01:08 PM
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Jul 15, 2008, 04:50 PM
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nice... I have an evo 8 ECU on an evo 7 engine in an evo 6. I did have a problem, that was the immobilizer. I used the tatrix and the OpenECU software to disable it.
You can able to swap evo 8 and 7 ecu to the CP9A IV, V, and VI but can't swap the old version to the current CT9A.
You can able to swap evo 8 and 7 ecu to the CP9A IV, V, and VI but can't swap the old version to the current CT9A.
Jul 15, 2008, 04:56 PM
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Many have done it with the EDM and JDM ECUs but as far as I know, this is the first USDM 8 Ecu swap into the Evo 6. The pinouts are slightly different between them.