I have repeatedly built a T4 ECU on a Hayabusa 1300 Gen1.
Engine started and ran smoothly at idle , took gas shocks and revved cleanly up to 6800-7000 1/min . However, he limited himself to this speed.Although the limiter is at 10300 .He also started several times without problems. After we had stalled the engine once with gear insert he never started again.
He ignites somewhere in exhaust or intake almost as if the speed signal does not fit. Crank signal attached I would say the signal is too weak ???what do you say ??? also that he has limited me strongly surprised.
The same Ecu T4 with the mapping runs on another Busa with 188NM and 225HP very well.
Infos Crank reluctor and no Camshaft sensor mounted