I have a 2003 BP5 wagon, EJ20T (JDM), did a bottom end bearing and found a bp5 2007 engine low k's so brought that and just put it in yesterday
I noticed the newer 07 has the air pump, and some of the wiring is different, not majorly but some wires appeared out, it still plugs into my chassis looms, but will not start/fire.
I was curious if anyone had experienced such a engine swap.
I will be today taking out the 07 engine loom and transferring the 03 loom onto the 07 engine.
I also note the 07 engine has the fuel regulator on the engine as mine is located by the strut tower, i havent figured out what my plans are yet regarding that, i may have to take a lot off the engine and swap all my gear across, essentially using just the long block. just time consuming....
I also, while engine was out replaced the dual mass flywheel with a conversion kit single mass(pro clutch, australian clutch services) as the dual mass was wearing out.
the old dual mass was about 19.5kg, the new single is 12.5kg
I will update how i get on today, i couldnt find any threads relating to my issues or situation