... Professional service 2. R&d manufacturer 3. ISO9001:2008 4. 4cylinder ECU kits Sichuan Aonengjia Gas Vehicle Technology Co., ... 16V2, Coil Resistance: 3 Ω3, Peak & Hold: peak & hold4, Cylinder Type: sequential Injection 3 or 4 cylinder5, Input Signal: original injection petrol ... Unit (include fuse, harness)4. Buzzer* CNG sequantial injected ECU kit * For 4 cylinder EFI engine 4 Cylinder CNG ECU kits