Hey, I just recently bought a used ECU and after I installed it, my fuel cuts off at 6,500 RPM and my CEL is on. I did the key dance and I got the error code, 12-66-55. I found out that 12-55 are normal codes and 66 means that my TCM has been disconnected. The problem is, my car is a manual and only automatic cars have TCMs. That means the ECU I bought was from an automatic. Any idea what I could do to get rid of the fuel cut and the CEL? HELP!