Are you doing a into a different chassis, or are you troubleshooting a specific sensor (like VTEC or O2)? I can help with specific wire colors if you tell me which one!
Here is the chaos. The Drive-by-Wire throttle has . Mess these up, and the ECU will throw a "Throttle Actuator Control" code and go into limp mode (max 2,500 RPM).
For swaps into older cars, you must provide a VSS signal (A20) and Brake Switch (A30), otherwise you will have idle issues and limp mode.