well we did my buddys swap.. he had jdm b16 in a ek coupe.. we put a poor mans type r in with the same wire harness and did not messin with the wiring. befor the swap the car was runnin good but afret it started blowin the ecu fuse when you push it.. and it feels like it hits fuel cut.. what can the problem be..it also melted two of the wires that go to the main relay but we fixed that problem..

we have ..

1) changed the main relay
2) took the engine harness apart to check the wiring
3) changed the ecu
4)changed the fuse box in the engine bay

please help this is makin us go crazy. thanks