4th Gerneration CNG/LPG ECU kit for 4 cylinders car ,,LPG conversion kit,CNG conversion kit, SYP CNG/ ... car ,, Used in Sequention injection system for 4 cylinder EFI enginee . including switch K119A,MAP sensor ,cabelWith Timing advancer ,OBD-2 compatible ... different engine condition1)Work pwero DC 12V2)harness program for 4 cylinder enginee3)Self-calibration4)With MAP sensor , water and gas ...