I've changed my Accord 94 engine, form F20Z2 to F20Z1. Unfortunately i didnt bought Ecu together with engine. Now i'm looking ECU for this engine, but i don't know what code of ECU i need. My old Ecu is P46-G20. Does anybody know what ECU i need? Or maybe i don't need to change it at all, i mean my old Ecu (P46-G20) is good for this engine, but i don't like how my engine works now. I tried P45-G31 Ecu, but my engine doesn't start with it(( Could anyone help me about that ?