Kinda new to the scene and well I have a 04 accord with a j30a4 engine that ended up just firing and so I sent it to a couple of friends and they decided to do a engine swap with a j30a, we got the harness cut some pieces cut and well they put it together and now it runs but it's on limp mode. Idk what to do next, seeing as I'm new to this, what should I do now?


specs is basically from j30a4 to a j30a with the harness of the a4 and ecu just the engine is different