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Discussion Starter · #1 ·
I have an 06 TSX that was totaled with only 80k miles. I went and bought an 05 with 230k miles and plan on swapping the 06 motor into the 05 body. I know they made slight upgrades to the engine in 06
Does anyone know if
  1. I would have to also swap the ECU and key cylinder. I assume yes
  2. the wiring harness from the 05 is the same and will just plug into the 06 motor
Any other input you guys have I’d appreciate
 

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The 2006-08 TSX K24 engines are superior to the 2004-05 TSX K24 engines but, in your case, you are just trying to get the car running and driving.



If I recall, the only issue you might run into when swapping a 2006 TSX engine into a 2005 TSX is the throttle body difference.
The 2004-05 TSX throttle body is different than the 2006-08 TSX throttle body. I can't recall if the connector is different or the mounting flange.
You may have to swap the 2005 intake manifold and TB onto the 2006 engine.
The 2006+ TSX intake manifold is slightly larger and flows more than the 2005 intake manifold.

No ECU changes are necessary but if you are after more power, a 2007-08 ECU swap with FlashPro would be the ideal option.
 
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Discussion Starter · #4 ·
The 2006-08 TSX K24 engines are superior to the 2004-05 TSX K24 engines but, in your case, you are just trying to get the car running and driving.



If I recall, the only issue you might run into when swapping a 2006 TSX engine into a 2005 TSX is the throttle body difference.
The 2004-05 TSX throttle body is different than the 2006-08 TSX throttle body. I can't recall if the connector is different or the mounting flange.
You may have to swap the 2005 intake manifold and TB onto the 2006 engine.
The 2006+ TSX intake manifold is slightly larger and flows more than the 2005 intake manifold.

No ECU changes are necessary but if you are after more power, a 2007-08 ECU swap with FlashPro would be the ideal option.
Thanks a lot for the info. I’m working on it Thursday I’ll see if I can compare the manifolds to see the differences.

I’m not an expert at this stuff I haven’t really done anything like this but I really liked my TSX and wasn’t ready to give up on it.

I’m just looking to get it running (and running well.) Not looking for power.
 
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