almost all aftermarket ecu can tune ignition timing. But i suggest u not to tune it by yourself if u r not a tuner bcoz if u make mistake when tuning I/T can coz engine blow. Plz pm me if u need more info.
Any sifu can advice:
Took out battery for a week after horn suddenly go berserk..
After put back the battery, the car engine rpm seems like dropping to below 500 rpm when car going for a complete stop, like stop in...
guys need help from all u sifu regarding my converted RB20DET...problem is the engine was unable to launch properly from 1st gear until 5th gear...when the rpm is above 3k the turbo get in than it's ok...no problem...