Ok, Got the bug to swap my engine with a K24. Found an engine that was in a Civic for sale on eBay. Came out of an 03 Civic I think. It is a TSX engine from an 06-08. Came with the ECU already programed to this engine. Also came with a 6 speed LSD, shift cables, shifter, axles, wire harness. So now the part that I have questions about. Making the fit talk to the TSX ECU. Anyone have info for this? Also have the Hasport mounts now. Ready to pull the engine out. Been watching Vtech and other YouTubers but not sure about the this ECU talking to the Fit.
Jim

Has an aluminum oil pan and a RBB4 head. Pretty sure it's from a TSX?

 

There should be info on this topic on the k swapped fit facebook group. Im pretty sure a a standalone is your best bet in this instance but i know some guys are running stock ecus.