I have a 2000 Honda Civic Ex that I recently drop a 98 d16y8 engine in. The engine runs great and I haven't had any problems till now. I drove the car for abkuf a week and now the engine light is on. The code comes up p740. I have a brand-new torque converter and I used honda transmission fluid. My question is am I missing something that causes this code or do I have a bad converter.