Engine tersenggul + backfire = campuran kopi & gula tak betul tuh. Air tak cukup panas, so kopi timbul. Tak larut. Gula tak cukup, so kopi tawar. Kopi setting tak sedap. So, tak rapat rasa macam kopi Tenom!.
engine tersengguk2 ni bahaya gak since A/F tak cukup. Don't Drag2 lama at low gear, especially during traffic jam, later engine terus mati & kena restart few time baru hidup.
Solution rasanya : Do re-setting ke atas apa2 bende yang boleh setting.
Re-tune the ECU + Retune the VAFC.
BTW, pakai NA jer. Easier.
NA become Turbo = SO frangile & Fobs Pening!!