Nissan GT-R ‒ ECM Tool
NISSAN GT-R ECM Tools allows you to reset all the learn values for Idle Control and Fuel Trims.

How it works
Reset ECU This will clear all learnt values for Idle Control and Fuel Trims.
Idle Learning will commence an auto-learn air-flow/throttle balance sequence. Ensure that the Engine and TCM are at more than 65 degrees C, that the car is in Park with the handbrake ON and that there are no DTCs, either current or historic, then start the auto-learn sequence.
Power Balance will cut individual fuel injectors to help isolate problem cylinders.