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i bought my standalone ecu to install on vios 09"..my car only mod exhaust,intake filter,light crank pulley...that all i mod and others remain stock..after install the ECu, i fell the car lighter,throttle respond more faster than before,and rpm climb faster too..

My sifu teach me to tune the ecu, but its too complicated for me...

actually current my car is stock,should be easy to tune rite?
so any sifu here wiling to give some advice to tune?

how to tune fuel map,A/F...